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Spooky Stories of Data Breaches

October 28, 2024
3
Min Read
Data Security

As Halloween approaches, it’s the perfect time to dive into some of the scariest data breaches of 2024. Just like monsters hiding in haunted houses, cyber threats quietly move through the digital world, waiting to target vulnerable organizations.

The financial impact of cyberattacks is immense. Cybersecurity Ventures estimates global cybercrime will reach $9.5 trillion in 2024 and $10.5 trillion by 2025. Ransomware, the top threat, is projected to cause damages from $42 billion in 2024 to $265 billion by 2031.

If those numbers didn’t scare you, the 2024 Verizon Data Breach Investigations Report highlights that out of 30,458 cyber incidents, 10,626 were confirmed data breaches, with one-third involving ransomware or extortion. Ransomware has been the top threat in 92% of industries and, along with phishing, malware, and DDoS attacks, has caused nearly two-thirds of data breaches in the past three years.

Let's explore some of the most spine-tingling breaches of 2024 and uncover how they could have been avoided.

Major Data Breaches That Shook the Digital World

The Dark Secrets of National Public Data

The latest National Public Data breach is staggering, just this summer, a hacking group claims to have stolen 2.7 billion personal records, potentially affecting nearly everyone in the United States, Canada, and the United Kingdom. This includes American Social Security numbers. They published portions of the stolen data on the dark web, and while experts are still analyzing how accurate and complete the information is (there are only about half a billion people between the US, Canada, and UK), it's likely that most, if not all, social security numbers have been compromised.

The Haunting of AT&T

AT&T faced a nightmare when hackers breached their systems, exposing the personal data of 7.6 million current and 65.4 million former customers. The stolen data, including sensitive information like Social Security numbers and account details, surfaced on the dark web in March 2024.

Change Healthcare Faces a Chilling Breach

In February 2024, Change Healthcare fell victim to a massive ransomware attack that exposed the personal information of millions of individuals, with 145 million records exposed. This breach, one of the largest in healthcare history, compromised names, addresses, Social Security numbers, medical records, and other sensitive data. The incident had far-reaching effects on patients, healthcare providers, and insurance companies, prompting many in the healthcare industry to reevaluate their security strategies.

The Nightmare of Ticketmaster

Ticketmaster faced a horror of epic proportions when hackers breached their systems, compromising 560 million customer records. This data breach included sensitive details such as payment information, order history, and personal identifiers. The leaked data, offered for sale online, put millions at risk and led to potential federal legal action against their parent company, Live Nation.

How Can Organizations Prevent Data Breaches: Proactive Steps

To mitigate the risk of data breaches, organizations should take proactive steps. 

  • Regularly monitor accounts and credit reports for unusual activity.
  • Strengthen access controls by minimizing over-privileged users.
  • Review permissions and encrypt critical data to protect it both at rest and in transit. 
  • Invest in real-time threat detection tools and conduct regular security audits to help identify vulnerabilities and respond quickly to emerging threats.
  • Implement Data Security Posture Management (DSPM) to detect shadow data and ensure proper data hygiene (i.e. encryption, masking, activity logging, etc.) 

These measures, including multi-factor authentication and routine compliance audits, can significantly reduce the risk of breaches and better protect sensitive information.

Best Practices to Secure Your Data 

Enough of the scary news, how do we avoid these nightmares?

Organizations can defend themselves starting with Data Security Posture Management (DSPM) tools. By finding and eliminating shadow data, identifying over-privileged users, and monitoring data movement, companies can significantly reduce their risk of facing these digital threats.

Looking at these major breaches, it's clear the stakes have never been higher. Each incident highlights the vulnerabilities we face and the urgent need for strong protection strategies. Learning from these missteps underscores the importance of prioritizing data security.

As technology continues to evolve and regulations grow stricter, it’s vital for businesses to adopt a proactive approach to safeguarding their data. Implementing proper data security measures can play a critical role in protecting sensitive information and minimizing the risk of future breaches.

Sentra: The Data Security Platform for the AI era

Sentra enables security teams to gain full visibility and control of data, as well as protect against sensitive data breaches across the entire public cloud stack. By discovering where all the sensitive data is, how it's secured, and where it's going, Sentra reduces the 'data attack surface', the sum of all places where sensitive or critical data is stored or traveling to.Sentra’s cloud-native design combines powerful Data Discovery and Classification, DSPM, DAG, and DDR capabilities into a complete Data Security Platform (DSP). With this, Sentra customers achieve enterprise-scale data protection and answer the important questions about their data. Sentra DSP provides a crucial layer of protection distinct from other infrastructure-dependent layers. It allows organizations to scale data protection across multi-clouds to meet enterprise demands and keep pace with ever-evolving business needs. And it does so very efficiently - without creating undue burdens on the personnel who must manage it.

Haim has extensive experience working with large organizations interested in enhancing their data security in the cloud.

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Ward Balcerzak
Ward Balcerzak
December 17, 2025
3
Min Read

How CISOs Will Evaluate DSPM in 2026: 13 New Buying Criteria for Security Leaders

How CISOs Will Evaluate DSPM in 2026: 13 New Buying Criteria for Security Leaders

Data Security Posture Management (DSPM) has quickly become part of mainstream security, gaining ground on older solutions and newer categories like XDR and SSE. Beneath the hype, most security leaders share the same frustration: too many products promise results but simply can't deliver in the messy, large-scale settings that enterprises actually have. The DSPM market is expected to jump from $1.86B in 2024 to $22.5B by 2033, giving buyers more choice - and greater pressure - to demand what really sets a solution apart for the coming years.

Instead of letting vendors dictate the RFP, what if CISOs led the process themselves? Fast-forward to 2026 and the checklist a CISO uses to evaluate DSPM solutions barely resembles the checklists of the past. Here are the 12 criteria everyone should insist on - criteria most vendors would rather you ignore, but industry leaders like Sentra are happy to highlight.

Why Legacy DSPM Evaluation Fails Modern CISOs

Traditional DSPM/DCAP evaluations were all about ticking off feature boxes: Can it scan S3 buckets? Show file types? But most CISO I meet point to poor data visibility as their biggest vulnerability. It's already obvious that today’s fragmented, agent-heavy tools aren’t cutting it.

So, what’s changed for 2026? Massive data volumes, new unstructured formats like chat logs or AI training sets, and rapid cloud adoption mean security leaders now need a different class of protection.

The right platform:

  • Works without agents, everywhere you operate
  • Focuses on bringing real, risk-based context - not just adding more alerts
  • Automates compliance and fixes identity/data governance gaps
  • Manages both structured and unstructured data across the whole organization

Old evaluation checklists don’t come close. It’s time to update yours.

The 13 DSPM Buying Criteria Vendors Hope You Don’t Ask

Here’s what should be at the heart of every modern assessment, especially for 2026:

  1. Is the platform truly agentless, everywhere? Agent-based designs slow you down and block coverage. The best solutions set up in minutes, with absolutely no agents - across SaaS, IaaS, or on-premises and will always discover any unknown and shadow data
  1. Does it operate fully in-environment? Your data needs to stay in your cloud or region - not copied elsewhere for analysis. In-environment processing guards privacy, simplifies compliance, and matches global regulations (Cloud Security Alliance).
  1. Can it accurately classify unstructured data (>98% accuracy)? Most tools stumble outside of databases. Insist on AI-powered classification that understands language, context, and sensitivity. This covers everything from PDF files to Zoom recordings to LLM training data.
  1. How does it handle petabyte-scale scanning and will it  break the bank? Legacy options get expensive as data grows. You need tools that can scan quickly and stay cost-effective across multi-cloud and hybrid environments at massive scale.
  1. Does it unify data and identity governance? Very few platforms support both human and machine identities - especially for service accounts or access across clouds. Only end-to-end coverage breaks down barriers between IT, business, and security.
  1. Can it surface business-contextualized risk insights? You need more than technical vulnerability. Leading platforms map sensitive data by its business importance and risk, making it easier to prioritize and take action.
  1. Is deployment frictionless and multi-cloud native? DSPM should work natively in AWS, Azure, GCP, and SaaS, no complicated integrations required. Insist on fast, simple onboarding.
  1. Does it offer full remediation workflow automation? It’s not enough to raise the alarm. You want exposures fixed automatically, at scale, without manual effort.

  2. Does this fit within my Data Security Ecosystem? Choose only platforms that integrate and enrich your current data governance stack so every tool operates from the same source of truth without adding operational overhead. 
  1. Are compliance and security controls bridged in a unified dashboard? No more switching between tools. Choose platforms where compliance and risk data are combined into a single view for GRC and SecOps.
  1. Does it support business-driven data discovery (e.g., by project, region, or owner)? You need dynamic views tied to business needs, helping cloud initiatives move faster without adding risk, so security can become a business enabler.
  1. What’s the track record on customer outcomes at scale? Actual results in complex, high-volume settings matter more than demo promises. Look for real stories from large organizations.
  2. How is pricing structured for future growth? Beware of pricing that seems low until your data doubles. Look for clear, usage-based models so expansion won’t bring hidden costs.

Agentless, In-Environment Power: Why It’s the New Gold Standard

Agentless, in-environment architecture removes hassles with endpoint installs, connectors, and worries about where your data goes. Gartner has highlighted that this approach reduces regulatory headaches and enables fast onboarding. As organizations keep adding new cloud and hybrid systems, only these platforms can truly scale for global teams and strict requirements.

Sentra’s platform keeps all processing inside your environment. There’s no need to export your data; offering peace of mind for privacy, sovereignty, and speed. With regulations increasing everywhere, this approach isn’t just helpful; it’s essential.

Classification Accuracy and Petabyte-Scale Efficiency: The Must-Haves for 2026

Unstructured data is growing fast, and workloads are now more diverse than ever. The difference between basic scanning and real, AI-driven classification is often the difference between protecting your company or ending up on the breach list. Leading platforms, including Sentra, deliver over 95% classification accuracy by using large language models and in-house methods across both structured and unstructured data.

Why is speed and scale so important? Old-school solutions were built with smaller data volumes in mind. Today, DSPM platforms must quickly and affordably identify and secure data in vast environments. Sentra’s scanning is both fast and affordable, keeping up as your data grows. To learn more about these challenges read: Reducing Cloud Data Attack Risk.

Don’t Settle: Redefining Best-in-Class DSPM Buying Criteria for 2026

Many vendors are still only comfortable offering the basics, but the demands facing CISOs today are anything but basic. Combining identity and data governance, multi-cloud support that works out of the box, and risk insights mapped to real business needs - these are the essential elements for protecting today’s and tomorrow’s data. If a solution doesn’t check all 12 boxes, you’re already limiting your security program before you start.

Need a side-by-side comparison for your next decision?  Request a personalized demo to see exactly how Sentra meets every requirement.

Conclusion

With AI further accelerating data growth, security teams can’t afford to settle for legacy features or generic checklists. By insisting on meaningful criteria - true agentless design, in-environment processing, precise AI-driven classification, scalable affordability, and business-first integration - CISOs set a higher standard for both their own organizations and the wider industry.

Sentra is ready to help you raise the bar. Contact us for a data risk assessment, or to discuss how to ensure your next buying decision leads to better protection, less risk, and a stronger position for the future.

Continue the Conversation

If you want to go deeper into how CISOs are rethinking data security, I explore these topics regularly on Guardians of the Data, a podcast focused on real-world data protection challenges, evolving DSPM strategies, and candid conversations with security leaders.

Watch or listen to Guardians of the Data for practical insights on securing data in an AI-driven, multi-cloud world.

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Nikki Ralston
Nikki Ralston
Romi Minin
Romi Minin
December 16, 2025
3
Min Read

Sentra Is One of the Hottest Cybersecurity Startups

Sentra Is One of the Hottest Cybersecurity Startups

We knew we were on a hot streak, and now it’s official.

Sentra has been named one of CRN’s 10 Hottest Cybersecurity Startups of 2025. This recognition is a direct reflection of our commitment to redefining data security for the cloud and AI era, and of the growing trust forward-thinking enterprises are placing in our unique approach.

This milestone is more than just an award. It shows our relentless drive to protect modern data systems and gives us a chance to thank our customers, partners, and the Sentra team whose creativity and determination keep pushing us ahead.

The Market Forces Fueling Sentra’s Momentum

Cybersecurity is undergoing major changes. With 94% of organizations worldwide now relying on cloud technologies, the rapid growth of cloud-based data and the rise of AI agents have made security both more urgent and more complicated. These shifts are creating demands for platforms that combine unified data security posture management (DSPM) with fast data detection and response (DDR).

Industry data highlights this trend: over 73% of enterprise security operations centers are now using AI for real-time threat detection, leading to a 41% drop in breach containment time. The global cybersecurity market is growing rapidly, estimated to reach $227.6 billion in 2025, fueled by the need to break down barriers between data discovery, classification, and incident response 2025 cybersecurity market insights. In 2025, organizations will spend about 10% more on cyber defenses, which will only increase the demand for new solutions.

Why Recognition by CRN Matters and What It Means

Landing a place on CRN’s 10 Hottest Cybersecurity Startups of 2025 is more than publicity for Sentra. It signals we truly meet the moment. Our rise isn’t just about new features; it’s about helping security teams tackle the growing risks posed by AI and cloud data head-on. This recognition follows our mention as a CRN 2024 Stellar Startup, a sign of steady innovation and mounting interest from analysts and enterprises alike.

Being on CRN’s list means customers, partners, and investors value Sentra’s straightforward, agentless data protection that helps organizations work faster and with more certainty.

Innovation Where It Matters: Sentra’s Edge in Data and AI Security

Sentra stands out for its practical approach to solving urgent security problems, including:

  • Agentless, multi-cloud coverage: Sentra identifies and classifies sensitive data and AI agents across cloud, SaaS, and on-premises environments without any agents or hidden gaps.
  • Integrated DSPM + DDR: We go further than monitoring posture by automatically investigating incidents and responding, so security teams can act quickly on why DSPM+DDR matters.
  • AI-driven advancements: Features like domain-specific AI Classifiers for Unstructure advanced AI classification leveraging SLMs, Data Security for AI Agents and Microsoft M365 Copilot help customers stay in control as they adopt new technologies Sentra’s AI-powered innovation.

With new attack surfaces popping up all the time, from prompt injection to autonomous agent drift, Sentra’s architecture is built to handle the world of AI.

A Platform Approach That Outpaces the Competition

There are plenty of startups aiming to tackle AI, cloud, and data security challenges. Companies like 7AI, Reco, Exaforce, and Noma Security have been in the news for their funding rounds and targeted solutions. Still, very few offer the kind of unified coverage that sets Sentra apart.

Most competitors stick to either monitoring SaaS agents or reducing SOC alerts. Sentra does more by providing both agentless multi-cloud DSPM and built-in DDR. This gives organizations visibility, context, and the power to act in one platform. With features like Data Security for AI Agents, Sentra helps enterprises go beyond managing alerts by automating meaningful steps to defend sensitive data everywhere.

Thanks to Our Community and What’s Next

This honor belongs first and foremost to our community: customers breaking new ground in data security, partners building solutions alongside us, and a team with a clear goal to lead the industry.

If you haven’t tried Sentra yet, now’s a great time to see what we can do for your cloud and AI data security program. Find out why we’re at the forefront: schedule a personalized demo or read CRN’s full 2025 list for more insight.

Conclusion

Being named one of CRN’s hottest cybersecurity startups isn’t just a milestone. It pushes us forward toward our vision - data security that truly enables innovation. The market is changing fast, but Sentra’s focus on meaningful security results hasn't wavered.

Thank you to our customers, partners, investors, and team for your ongoing trust and teamwork. As AI and cloud technology shape the future, Sentra is ready to help organizations move confidently, securely, and quickly.

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Meni Besso
Meni Besso
December 15, 2025
3
Min Read

AI Governance Starts With Data Governance: Securing the Training Data and Agents Fuelling GenAI

AI Governance Starts With Data Governance: Securing the Training Data and Agents Fuelling GenAI

Generative AI isn’t just transforming products and processes - it’s expanding the entire enterprise risk surface. As C-suite executives and security leaders rush to unlock GenAI’s competitive advantages, a hard truth is clear: effective AI governance depends on solid, end-to-end data governance.

Sensitive data is increasingly used for model training and autonomous agents. If organizations fail to discover, classify, and secure these resources early, they risk privacy breaches, regulatory violations, and reputational damage. To make GenAI safe, compliant, and trustworthy from the start, data governance for generative AI needs to be a top boardroom priority.

Why Data Governance is the Cornerstone of GenAI Trustworthiness and Safety

The opportunities and risks of generative AI depend not only on algorithms, but also on the quality, security, and history of the underlying data. AWS reports that 39% of Chief Data Officers see data cleaning, integration, and storage as the main barriers to GenAI adoption, and 49% of enterprises make data quality improvement a core focus for successful AI projects (AWS Enterprise Strategy - Data Governance). Without strong data governance, sensitive information can end up in training sets, leading to unintentional leaks or model behaviors that break privacy and compliance.

Regulatory requirements, such as the Generative AI Copyright Disclosure Act, are evolving fast, raising the pressure to document data lineage and make sure unauthorized or non-compliant datasets stay out. In the world of GenAI, governance goes far beyond compliance checklists. It’s essential for building AI that is safe, auditable, and trusted by both regulators and customers.

New Attack Surfaces: Risks From Unsecured Data and Shadow AI Agents

GenAI adoption increases risk. Today, 79% of organizations have already piloted or deployed agentic AI, with many using LLM-powered agents to automate key workflows (Wikipedia - Agentic AI). But if these agents, sometimes functioning as "shadow AI" outside official oversight, access sensitive or unclassified data, the fallout can be severe.

In 2024, over 30% of AI data breaches involve insider threats or accidental disclosure, according to Quinnox Data Governance for AI. Autonomous agents can mistakenly reveal trade secrets, financial records, or customer data, damaging brand trust. The risk multiplies rapidly if sensitive data isn’t properly governed before flowing into GenAI tools. To stop these new threats, organizations need up-to-the-minute insight and control over both data and the agents using it.

Frameworks and Best Practices for Data Governance in GenAI

Leading organizations now follow data governance frameworks that match changing regulations and GenAI's technical complexity. Standards like NIST AI Risk Management Framework (AI RMF) and ISO/IEC 42001:2023 are setting the benchmarks for building auditable, resilient AI programs (Data and AI Governance - Frameworks & Best Practices).

Some of the most effective practices:

  • Managing metadata and tracking full data lineage
  • Using data access policies based on role and context
  • Automating compliance with new AI laws
  • Monitoring data integrity and checking for bias

A strong data governance program for generative AI focuses on ongoing data discovery, classification, and policy enforcement - before data or agents meet any AI models. This approach helps lower risk and gives GenAI efforts a solid base of trust.

Sentra’s Approach: Proactive Pre-Integration Discovery and Continuous Enforcement

Many tools only secure data after it’s already being used with GenAI applications. This reactive strategy leaves openings for risk. Sentra takes a different path, letting organizations discover, classify, and protect sensitive data sources before they interact with language models or agentic AI.

By using agentless, API-based discovery and classification across multi-cloud and SaaS environments, Sentra delivers immediate visibility and context-aware risk scoring for all enterprise data assets. With automated policies, businesses can mask, encrypt, or restrict data access depending on sensitivity, business requirements, or audit needs. Live Continuous monitoring tracks which AI agents are accessing data, making granular controls and fast intervention possible. These processes help stop shadow AI, keep unauthorized data out of LLM training, and maintain compliance as rules and business needs shift.

Guardrails for Responsible AI Growth Across the Enterprise

The future of GenAI depends on how well businesses can innovate while keeping security and compliance intact. As AI regulations become stricter and adoption speeds up, Sentra’s ability to provide ongoing, automated discovery and enforcement at scale is critical. Further reading: AI Automation & Data Security: What You Need To Know.

With Sentra, organizations can:

  • Stop unapproved or unchecked data from being used in model training
  • Identify shadow AI agents or risky automated actions as they happen
  • Support audits with complete data classification
  • Meet NIST, ISO, and new global standards with ease

Sentra gives CISOs, CDOs, and executives a proactive, scalable way to adopt GenAI safely, protecting the business before any model training even begins.

AI Governance Starts with Data Governance

AI governance for generative AI starts, and is won or lost, at the data layer. If organizations don’t find, classify, and secure sensitive data first, every other security measure remains reactive and ineffective. As generative AI, agent automation, and regulatory demands rise, a unified data governance strategy isn’t just good practice, it’s an urgent priority. Sentra gives security and business teams real control, making sure GenAI is secure, compliant, and trusted.

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