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Types of Sensitive Data: What Cloud Security Teams Should Know

August 22, 2022
3
 Min Read
Data Security

Not all data is created equal. If there’s a breach of your public cloud, but all the hackers access is company photos from your last happy hour… well, no one really cares. It’s not making headlines. On the other hand if they leak a file which contains the payment and personal details of your customers, that’s (rightfully) a bigger deal. 

This distinction means that it’s critical for data security teams to understand the types of data that they should be securing first. This blog will explain the most common types of sensitive data organizations maintain, and why they need to be secured and monitored as they move throughout your cloud environment.

Types of Sensitive Cloud Data

Personal Identifiable Information (PII): National Institute of Standards and Practices defines PII as:

(1) any information that can be used to distinguish or trace an individual‘s identity, such as name, social security number, date and place of birth, mother‘s maiden name, or biometric records; and (2) any other information that is linked or linkable to an individual, such as medical, educational, financial, and employment information.

User and customer data has become an increasingly valuable asset for businesses, and the amount of PII - especially in the cloud- has increased dramatically in only the past few years. 

 The value and amount of PII means that it is frequently the type of data that is exposed in the most famous data leaks. This includes the 2013 Yahoo! breach, which affected 3 billion records, and the 2017 Equifax breach.

Payment Card Industry (PCI): PCI data includes credit card information and payment details. The Payment Card Industry Security Standards Council created PCI-DSS (Data Security Standard) as a way to standardize how credit cards can be securely processed. To become PCI-DSS compliant, an organization must follow certain security practices with the aim of achieving 6 goals:

  • Build and maintain a secure network
  • Protect cardholder data
  • Maintain a vulnerability management program
  • Implement strong access control measures
  • Regularly monitor networks
  • Maintain an information security policy

Protected Health Information (PHI): In the United States, PHI regulations are defined by the Health Insurance Portability and Accountability Act (HIPAA). This data includes any past and future data about an identifiable individual’s health, treatment, and insurance information. The guidelines for protecting PHI are periodically updated by the US Department of Health and Human Services (HHS) but on a technological level, there is no one ‘magic bullet’ that can guarantee compliance. Compliant companies and healthcare providers will layer different defenses to ensure patient data remains secure. By law, HHS maintains a portal where breaches affecting 500 or more patient records are listed and updated.

Intellectual Property: While every company should consider user and employee data sensitive, what qualifies as a sensitive IP varies from organization to organization. For SaaS companies this could be source code of all customer-facing services or customer base trends. Identifying the most valuable data to your enterprise, securing it, and maintaining that security posture should be a priority for all security teams, regardless of the size of the company or where the data is stored.

Developer Secrets: For software companies, developer secrets such as passwords and API keys can be accidentally left in source code or in the wild. Often these developer secrets are unintentionally copied and stored in lower environments, data lakes, or unused block storage volumes.

The Challenge of Protecting Sensitive Cloud Data

When all sensitive data was stored on-prem, data security basically meant preventing unauthorized access to the company’s data center. Access could be requested, but the data wasn’t actually going anywhere. Of course, the adoption of cloud apps and infrastructures means this is no longer the case. Engineers and data teams need access to data to do their jobs, which often leads to moving, duplicating, or changing sensitive data assets. This growth of the ‘data attack surface’ leads to more sensitive data being exposed/leaked, which leads to more breaches. Breaking this cycle will require a new method of protecting these sensitive data classes.

Cloud Data Security with Data Security Posture Management

Data Security Posture Management (DSPM) was created for this new challenge. Recently recognized by Gartner® as an ‘On the Rise’ category, DSPMs find all cloud data, classify it by sensitivity, and then offer actionable remediation plans for data security teams. By taking a data centric approach to security, DSPM platforms are able to secure what matters to the business first - their data.


To learn more about Sentra’s DSPM solution, you can request a demo here.

Read insightful articles by the Sentra team about different topics, such as, preventing data breaches, securing sensitive data, and more.

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Ward Balcerzak
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Why I Joined Sentra: A Data Defender’s Journey

Why I Joined Sentra: A Data Defender’s Journey

After nearly two decades immersed in cybersecurity, spanning Fortune 500 enterprises, defense contractors, manufacturing giants, consulting, and the vendor ecosystem, I’ve seen firsthand how elusive true data security remains. I've built and led data security programs from scratch in some of the world’s most demanding environments. But when I met the team from Sentra, something clicked in a way that’s rare in this industry.

Let me tell you why I joined Sentra and why I’m more excited than ever about the future of data security.

From Visibility to Vulnerability

In every role I've held, one challenge has consistently stood out: understanding data.
Not just securing it but truly knowing what data we have, where it lives, how it moves, how it's used, and who touches it. This sounds basic, yet it’s one of the least addressed problems in security.

Now, we layer on the proliferation of cloud environments and SaaS sprawl (without mentioning the increasing proliferation of AI agents). The traditional approaches simply don’t cut it. Most organizations either ignore cloud data discovery altogether or lean on point solutions that can’t scale, lack depth, or require endless manual tuning and triage.

That’s exactly where Sentra shines.

Why Sentra?

When I first engaged with Sentra, what struck me was that this wasn’t another vendor trying to slap a new UI on an old problem. Sentra understands the problem deeply and is solving it holistically across all environments. They’re not just keeping up; they’re setting the pace.

The AI-powered data classification engine at the heart of Sentra’s platform is, quite frankly, the best I’ve seen in the market. It automates what previously required a small army of analysts and does so with an accuracy and scale that’s unmatched. It's not just smart, it’s operationally scalable.

But technology alone wasn’t what sold me. It was the people.
The Sentra founders are visionaries who live and breathe this space. They’re not building in a vacuum, they’re listening to customers, responding to real-world friction, and delivering solutions that security teams will actually adopt. That’s rare. That’s powerful.

And finally, there’s the culture. Sentra radiates innovation, agility, and relentless focus on impact. Every person here knows the importance of their role and how it aligns with our mission. That energy is infectious and it’s exactly where I want to be.

Two Decades. One Mission: Secure the Data.

At Sentra, I’m bringing the scars, stories, and successes from almost 20 years “in the trenches”:

  • Deep experience building and maturing data security programs within highly regulated, high-stakes environments

  • A commitment to the full people-process-technology stack, because securing data isn’t just about tools

  • A background stitching together integrated solutions across silos and toolsets

  • A unique perspective shaped by my time as a practitioner, leader, consultant, and vendor

This blend helps me speak the language of security teams, empathize with their challenges, and design strategies that actually work.

Looking Ahead

Joining Sentra isn’t just the next step in my career; it’s a chance to help lead the next chapter of data security. We’re not here to incrementally improve what exists. We’re here to rethink it. Redefine it. Solve it.

If you’re passionate about protecting what matters most, your data. I’d love to connect.

This is more than a job; it’s a mission. And I couldn’t be prouder to be part of it.

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David Stuart
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What the HIPAA Compliance Updates Mean for Your Security

What the HIPAA Compliance Updates Mean for Your Security

The Health Insurance Portability and Accountability Act (HIPAA) has long been a cornerstone of safeguarding sensitive health information in the U.S., particularly electronic protected health information (ePHI). As healthcare organizations continue to face growing cybersecurity challenges, ensuring the protection of ePHI has never been more critical. 

In response, for the first time in two decades, the U.S. Department of Health and Human Services (HHS) has proposed significant amendments to the HIPAA Security Rule, aimed at strengthening cybersecurity measures across the healthcare sector. These proposed changes are designed to address emerging threats and ensure that healthcare organizations have robust systems in place to protect patient data from unauthorized access and potential breaches. This blog presents the major changes that are coming soon and how you can prepare for them.

Instead of considering compliance as a one-time effort, with Sentra you can monitor your compliance status at any given moment, streamline reporting, and remediate compliance violations instantly.

How Sentra Can Help You Stay Compliant

Sentra’s data security platform equips healthcare organizations with the necessary tools to stay compliant with the new HIPAA Security Rule amendments. By providing continuous monitoring of ePHI data locations and assessing associated risks, Sentra helps organizations maintain full visibility and control over sensitive data.

Key Benefits of Using Sentra for HIPAA Compliance:

  • Automated Data Discovery & Classification: Instantly locate and classify ePHI across cloud and on-prem environments.
  • Real-time Risk Assessment: Continuously assess vulnerabilities and flag security gaps related to HIPAA requirements.
  • Access Control & Encryption Monitoring: Ensure compliance with mandatory MFA, encryption policies, and access termination requirements.
  • Smart Compliance Alerts: Sentra doesn’t just detect generic cloud misconfigurations. Instead, it pinpoints security issues affecting sensitive data, helping teams focus on what truly matters.

Without a solution such as Sentra, organizations waste valuable time manually searching for and classifying sensitive data, diverting key employees from higher-priority security tasks. With Sentra, security teams gain an ongoing, real-time dashboard that ensures efficient compliance and faster risk mitigation.

What You Need to Know About the Proposed HIPAA Security Rule Updates

The latest proposed updates to the HIPAA Security Rule represent some of the most significant changes in years. These updates aim to modernize data protection practices and ensure healthcare organizations are better equipped to handle today’s security challenges. Below are the key highlights compliance and security teams should focus on:

Mandatory Implementation Specifications
All implementation specifications under the HIPAA Security Rule will become mandatory. Covered entities and business associates must now fully comply with all safeguards—no more "addressable" exceptions.

Stricter Encryption Requirements
Encryption of electronic protected health information (ePHI) will be required both at rest and in transit. Organizations must ensure encryption is in place across all systems handling sensitive data.

Required Multifactor Authentication (MFA)
MFA will become mandatory to protect access to ePHI. This added security layer significantly reduces the risk of unauthorized access and credential compromise.

Network Segmentation for Threat Containment
Organizations must implement network segmentation to isolate sensitive systems and limit the spread of cyber threats in the event of a breach.

Timely Termination of Access
Access to ePHI must be revoked within 24 hours when an employee leaves or changes roles. This reduces the risk of insider threats and unauthorized access.

Comprehensive Documentation Requirements
Healthcare organizations must maintain detailed, up-to-date documentation of all security policies, procedures, risk assessments, and incident response plans.

Asset Inventories and Network Mapping
Annual updates to technology asset inventories and network maps will be required to ensure accurate tracking of where and how ePHI is stored and transmitted.

Enhanced Risk Analysis
Organizations must conduct regular, thorough risk assessments to identify vulnerabilities and assess threats across all systems that interact with ePHI.

Stronger Incident Response Plans
Entities must be able to restore lost systems and data within 72 hours after a cyber incident. Regular testing and refinement of incident response protocols will be essential.

Annual Compliance Audits
Healthcare organizations will be required to conduct annual audits of their HIPAA Security Rule compliance, covering all technical and administrative safeguards.

Mandatory Technical Controls
Technical safeguards like anti-malware tools, firewalls, and port restrictions must be in place and regularly reviewed to protect systems from evolving threats.

What’s Next?

The proposed changes to the HIPAA Security Rule are currently in the Notice of Proposed Rulemaking (NPRM) stage, with a 60-day public comment period that opened on January 6, 2025. During this period, stakeholders can provide feedback on the amendments, which may influence the final rule. Organizations should actively monitor the comment period, engage in the feedback process, and stay informed on any potential adjustments before the rule is finalized.

Steps Organizations Should Take Now:

  • Review the proposed changes and understand how they impact your current security posture.
  • Engage in the public comment process to share concerns or recommendations.
  • Start assessing security gaps to align with HIPAA’s evolving compliance requirements.

Conclusion

The new HIPAA compliance amendments represent a major shift in how healthcare organizations must protect electronic Protected Health Information (ePHI). The introduction of enhanced encryption standards, mandatory multi-factor authentication (MFA), and stricter access control measures means organizations must act swiftly to maintain compliance and reduce cybersecurity risks.

Compliance is not just about meeting regulations, it is about efficiency. Organizations relying on manual processes to locate and secure sensitive data waste valuable time and resources, making compliance efforts less effective.

With Sentra, healthcare organizations gain a powerful, automated data security solution that:

  • Eliminates manual data discovery by providing a real-time, continuous inventory of sensitive data.
  • Prioritizes relevant data security risks instead of overwhelming teams with unnecessary alerts.
  • Ensures compliance readiness by automating key processes like access control monitoring and encryption verification.

Now is the time for healthcare organizations to take proactive steps toward compliance. Stay informed, participate in the public comment process, and start implementing security enhancements today.

To learn how Sentra can help your organization achieve HIPAA compliance efficiently, request a demo today and take control of your sensitive data.

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Your AI Is Only as Secure as Your Data: Celebrating a $100M Milestone

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Over the past year, we’ve seen an incredible surge in enterprise AI adoption. Companies across industries are integrating AI agents and generative AI into their operations to move faster, work smarter, and unlock innovation. But behind every AI breakthrough lies a foundational truth: AI is only as secure as the data behind it.

At Sentra, securing that data has always been our mission, not just to prevent breaches and data leaks, but to empower prosperity and innovation with confidence and control.

Data Security: The Heartbeat of Your Organization

As organizations push forward with AI, massive volumes of data, often sensitive, regulated, or business-critical are being used to train models or power AI agents. Too often, this happens without full visibility or governance. 


The explosion of the data security market reflects how critical this challenge has become. At Sentra, we’ve long believed that a Data Security Platform (DSP) must be cloud-native, scalable, and adaptable to real-world enterprise environments. We’ve been proud to lead the way, and our continued growth, especially among Fortune 500 customers, is a testament to the urgency and relevance of our approach.

Scaling for What's Next

With the announcement of our $50 million Series B funding round, bringing our total funding to over $100 million, we’re scaling Sentra to meet the moment. We're counting on strong customer momentum and more than tripling revenue year-over-year, and we’re using this investment to grow our team, strengthen our platform, and continue defining what modern data security looks like.

We’ve always said security shouldn’t slow innovation - it should fuel it. And that’s exactly what we’re enabling.

It's All About the People


At the end of the day, it’s people who build it, scale it, and believe in it. I want to extend a heartfelt thank you to our investors, customers, and, most importantly, our team. It’s all about you! Your belief in Sentra and your relentless execution make everything possible. We couldn’t make it without each and every one of you.

We’re not just building a product, we’re setting the gold standard for data security, because securing your data is the heartbeat of your organization!

Innovation without security isn’t progress. Let’s shape a future where both go together!

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