Passing a security audit shows that the controls and policies the auditor reviewed were in place when they were checked. Being ready for an attack is a claim about today, that your controls still hold and your team can contain an attack fast enough when it starts. You need both, and each one is proven with a different kind of evidence.
Short answer
- Audits look back. They confirm what was in place for the period under review.
- Attacks test the present. They succeed through settings that drifted and steps nobody rehearsed.
- Evidence can serve both. Evidence produced from your live environment satisfies the auditor and shows where you stand today.
- Readiness has to be tested. The only proof of a response is a test of the response.
On this page
What does a security audit prove?
Compliance frameworks give a security program shared language and a way to show intent to customers and regulators. An audit confirms that the program’s documented controls existed and operated during the period it reviewed.
That makes an audit retrospective by design. It answers the question “Did we do the right things?” and it says little about whether the response would move fast enough if an attacker started work tomorrow.
How can an organization pass an audit and still be exposed?
Our post You Passed the Test. But Can You Survive the Attack? describes a gaming organization that passed its annual audit with strong results. An operational simulation then found shared administrator accounts, unmonitored access paths, logging gaps in critical systems and response runbooks that had never been tested under pressure.
Controls can also drift between audits. A setting that was correct on audit day can be changed by an administrator or an update the following week, and nothing may check it again until the next audit. For how to handle that, read what to do when configuration drift is detected. Our post Adversaries Don’t Care About Your Scorecard covers what happens when scores replace proof.
How do audit compliance and attack readiness compare?
| Question | Audit compliance | Attack readiness |
|---|---|---|
| What does it ask? | Did we put the right controls in place? | Can we respond fast enough when it counts? |
| Which time does it cover? | A review period that has ended | Today, and the next incident |
| What counts as evidence? | Policies and configuration samples from the review period | Tests that could fail, run against the live environment |
| How is it measured? | Findings and exceptions | Dwell time and time to contain |
How do you collect Microsoft 365 audit evidence without screenshots?
Screenshots record one moment and take time to gather. Evidence generated from the tenant itself can be produced on demand, and the same evidence tells your team whether controls still match the state you approved.
- Generated from the tenant. Evidence should come from the live configuration, so it reflects what is enforced today.
- Mapped to your frameworks. Each finding should map to the controls your auditors test against.
- Includes change history. The record should show what changed and which account made the change.
- Produced independently. Evidence from a system that operates separately from the one it evaluates is easier for an auditor to trust.
The Accelerynt Security Platform works this way. Findings map to fifteen frameworks in one validation pass, including NIST CSF 2.0, CIS Microsoft 365, CISA SCuBA, HIPAA, PCI-DSS v4.0 and ISO 27001:2022. Drift events show before and after values with the account responsible, and a risk register records when each finding was first discovered and last seen. The platform uses read-only permissions, so it changes nothing in your tenant.
For how this relates to the benchmarks auditors often ask about, read what the CIS Microsoft 365 benchmark is.
How do you test readiness between audits?
- Exercise the response path. Run a realistic incident from alert to containment and record every point where someone waited.
- Compare controls with your approved baseline. Check what is enforced today against the state your team agreed on.
- Check the age of your evidence. Note when each piece of evidence was produced and what has changed since.
- Test the people steps. Try the help desk reset process and the containment approval as an attacker would.
For the help desk step, read how to protect the help desk from social engineering. For validating controls between audits, read what continuous control validation is.
Where should you start?
If you need to know where your Microsoft tenant stands today, the Microsoft Control Validation Assessment validates your live configuration and external attack surface, then maps the attack paths between them.
If the board needs readiness evidence, the Executive Risk Assurance Assessment maps live data from Sentinel, Defender and Purview to the NIST CSF and delivers a prioritized risk register with a 90-day roadmap in 30 days.
For a way to put a number on readiness, read how to measure security readiness.
Frequently asked questions
Is passing a security audit the same as being ready for an attack?
Passing an audit confirms that reviewed controls were in place during the audit period. Readiness means your controls hold today and your team can contain an attack fast enough, which only testing against the live environment can show.
What tools collect Microsoft 365 audit evidence so we don’t have to take screenshots?
Look for a tool that generates evidence from the live tenant, maps it to your frameworks and records who changed what and when. The Accelerynt Security Platform maps findings to fifteen frameworks and keeps a drift record and risk register your auditor can check.
Why can an organization pass an audit and still be breached?
Audits review a past period and focus on whether controls exist. Attacks exploit what has changed since, such as drifted settings and response steps that were never exercised.
How often should readiness be tested?
Test whenever something the response depends on changes, such as a configuration, a system, a provider or the people who approve containment. Between those changes, set the interval by how critical each dependency is.