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What is a Cloud Compromise Assessment?

Think of a cloud compromise assessment like a yearly physical or health check for your cloud environment. It’s a specialized evaluation aimed at finding signs of past or ongoing breaches across platforms like Microsoft 365, AWS, Azure AD, or Google Cloud.

Unlike general cloud security audits, which focus on compliance and overall infrastructure health, this assessment zeroes in on active threats and signs of compromise.

It seeks answers to questions like:

  • Has an unauthorized party accessed your cloud data or systems?

  • Are there any lingering traces of malicious activity?

  • Was critical information siphoned off without your knowledge?

Essentially, the assessment dives into your cloud environment with a magnifying glass, scanning for issues that might fly under the radar during routine evaluations.

Importance of cloud system assessments

Cloud systems offer unparalleled flexibility, but they also expand your attack surface. Hackers target multi-cloud setups and enterprise SaaS systems because they know IT teams often struggle with visibility and control.


Here’s why a cloud compromise assessment is critical right now:

  • Cloud attacks are evolving: Threat actors now steal tokens or exploit identity systems to bypass multi-factor authentication (MFA).

  • The stakes are high: A breach can expose sensitive customer data, disrupt operations, or tarnish your reputation.

  • Visibility is everything: Without such assessments, many compromises remain hidden for months, giving attackers free rein inside your systems.

What does the assessment typically include?

A cloud compromise assessment examines your environment from every angle, uncovering vulnerabilities that attackers might exploit. Here’s what to expect in most evaluations:

1. Comprehensive log analysis

Audit logs, sign-in patterns, and user activity records are combed through to detect unusual patterns. Have there been impossible travel logins? Account escalations in the dead of night? These could be signs of compromise.

2. Indicators of compromise

Security teams will hunt for red flags like:

  • Suspicious MFA changes

  • Unauthorized app integrations

  • Malicious mailbox forwarding rules

  • External data exfiltration

Indicators represent a means to communicate technical information on a given threat or activity to others.

3. Token theft & adversary-in-the-middle detection

Token theft is a major tool for cloud attackers. These assessments check for stolen session tokens or adversaries intercepting authentication flows to bypass your safeguards.

4. Identity and permissions review

Who’s accessing what, and why? Identity usage gets a deep-dive to weed out excessive permissions, suspicious privilege escalations, and possible lateral movement.

5. Threat actor techniques

High-quality evaluations assess whether known covert methods have been used against your account, like silent malicious app registrations or permissions abuse.


When do you need a cloud compromise assessment?

Still wondering if your organization needs one? Here are key moments when scheduling an assessment is a no-brainer:

  • After a phishing attack or suspected breach: If you suspect credentials, access tokens, or sensitive data were stolen, this assessment is your first step to investigate and contain the damage.

  • When MFA fails or is bypassed: This is usually a sign that attackers are one step ahead and leveraging advanced techniques like token replay attacks.

  • Unusual account behavior:Logins from unexpected countries, changes in privileged accounts, or employees flagged by security monitoring all justify the need for deeper analysis.

  • Proactive M&A due diligence:Acquiring a company? Their cloud infrastructure may already host unknown threats. An assessment ensures you’re not inheriting hidden risks.

  • Reacting to new cloud vulnerabilities:Did a zero-day vulnerability just make headlines? If it impacts your tools or platforms, it’s time for a compromise assessment.



Real-World Example

The Hidden Attack in Microsoft 365

Take this scenario. A company had a Microsoft 365 account compromised due to token theft. The attacker accessed the account without logging in traditionally, bypassing MFA. They added mailbox rules to secretly forward emails for weeks. The breach wasn’t caught until a cloud compromise assessment exposed the malicious forwarding rules and unauthorized access history.


Without the assessment, the attack might have continued unnoticed, causing irreparable damage.



After the assessment

A reliable assessment doesn’t just point out problems; it helps you fix them. Here’s what comes next:

  • Detailed findings report You’ll receive a full breakdown of issues uncovered, including potential past compromises, security gaps, and areas needing improvement.

  • Actionable recommendations Experts will recommend tailored fixes, like revoking malicious tokens, tightening IAM policies, or remediating misconfigurations.

  • Cloud hardening Expect strategies to minimize future risk, such as:

    • Using short-lived session tokens

    • Enforcing stronger behavioral access controls

    • Revising overly permissive roles

  • Optional follow-up services Some providers, like Huntress, may offer managed detection and response (MDR) or incident response services to monitor and secure your environment long-term.


Why it matters more than ever

Cloud breaches are no longer rare events. Attackers are highly motivated because the payoff is massive. And if compromised, the cost to your organization can be devastating. Consider these troubling trends:

  • Identity-based attacks are on the rise. Hackers are targeting user accounts and identity management systems as their primary vector of entry.

  • Attackers are dwellers. They linger silently in your environment for weeks or months, gathering data and plotting their next move.

  • Visibility gaps remain a problem. Most businesses can’t confidently say they have full insight into their cloud activities.

This is why a cloud compromise assessment is no longer optional. It’s a critical step in building your resilience against modern cyber threats.



How Huntress can help

At Huntress, we specialize in identifying and mitigating threats hiding in your cloud environment. Our Microsoft 365 incident response and cloud threat detection services are designed to give mid-market businesses visibility and control. Don’t wait until attackers strike. Schedule your free demo today.

Attackers won’t wait. Neither should you.

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