Microsoft 365 & Entra ID Security Audits in APAC: What Gets Checked and Why It Matters

TL;DR: A Microsoft 365 and Entra ID security audit checks your Secure Score, conditional access policies, MFA coverage, Purview DLP rules, mailbox hardening, Intune device compliance, admin role sprawl, guest access, and legacy authentication — the nine areas attackers and regulators actually look at. Across APAC, audits are increasingly mandatory for MLPS, PDPA, PDPO, and APPI compliance, and are now a standard item in investor and insurer due diligence.

What Is a Microsoft 365 & Entra ID Security Audit, Exactly?

A Microsoft 365 and Entra ID security audit is a structured review of how your organization's cloud identity and productivity environment is configured — not a penetration test, and not a one-time checkbox exercise. Most companies running Microsoft 365 activate it with defaults that were reasonable in 2019 and have never been revisited since. Meanwhile Microsoft ships new security controls into the tenant every quarter, virtually none of which turn themselves on automatically.

The audit's job is to compare your tenant's actual configuration — identity, mail, devices, data — against a known-good baseline, flag every gap, and rank those gaps by real-world exploitability. Done properly, it produces a prioritized remediation list, not a 40-page compliance binder nobody reads. For a deeper breakdown of what audit and vulnerability scanning services typically cost in the region, see our companion pricing guide.

In practice, most organizations don't schedule this kind of review on a whim — something specific triggers it. The most common triggers Brocent sees across APAC clients are a scheduled regulatory assessment coming up (an MLPS testing cycle, an SFC inspection), a funding round or acquisition where technical due diligence is imminent, a cyber insurance renewal with a tighter questionnaire than last year's, a near-miss phishing incident that made leadership ask "could that have actually worked," or simply rapid headcount growth that has outpaced the identity governance put in place when the company was a fraction of its current size.

Why APAC Companies Need This Now

Two forces are converging on APAC organizations at once: tightening data protection law, and third parties who now demand proof of security hygiene before they'll do business with you. Neither pressure is theoretical, and both increasingly point straight at Microsoft 365 and Entra ID, since that's where most APAC mid-market companies keep their email, files, and identity.

China: MLPS 2.0 (等保 Multi-Level Protection Scheme)

Under China's Multi-Level Protection Scheme (MLPS 2.0, 网络安全等级保护制度), operators of information systems above Level 2 are required to demonstrate documented, tested security controls across identity management, access control, data protection, and audit logging — assessed on a recurring cycle by a licensed testing body. A foreign-invested enterprise running a China-facing Microsoft 365 tenant (or a hybrid identity setup bridging on-premises Active Directory to Entra ID) needs its access control and logging posture to hold up under that assessment, and an internal audit before the official one is the standard way to avoid surprises.

Hong Kong: PDPO

Hong Kong's Personal Data (Privacy) Ordinance (PDPO) requires data users to take "all practicable steps" to protect personal data against unauthorized or accidental access, and the Privacy Commissioner's guidance explicitly calls out access controls and staff device management as expected practicable steps. For SFC-licensed asset managers and other regulated Hong Kong entities, the bar is higher still — the SFC's own cybersecurity circulars expect MFA, privileged access controls, and patch management to be demonstrable, not just claimed. We cover this in detail in our guide to SFC Type 9 licensing and IT security.

Singapore & Malaysia: PDPA

Singapore's PDPA and Malaysia's PDPA both impose a data protection obligation requiring "reasonable security arrangements" — and both regulators (PDPC in Singapore, the Department of Personal Data Protection in Malaysia) have published enforcement decisions where the finding hinged on missing MFA, over-permissioned accounts, or unmonitored admin access — precisely the categories an M365/Entra ID audit is built to catch. Singapore's PDPC also expects a documented data breach management plan, which is hard to write credibly without first knowing where your actual exposure sits.

Taiwan: PDPA

Taiwan's Personal Data Protection Act requires "appropriate security measures" proportionate to the sensitivity of the data held, and sector regulators (notably the Financial Supervisory Commission for financial firms) layer on more specific technical expectations, including access logging and identity controls. Because Taiwan's PDPA enforcement often runs through sectoral regulators rather than a single central authority, the practical requirement — provable access governance — tracks very closely with what an Entra ID audit evaluates.

Japan: APPI

Japan's Act on the Protection of Personal Information (APPI) requires business operators to take "necessary and appropriate" security control action for personal data, and the Personal Information Protection Commission's guidelines get specific: access control, access monitoring, and physical/technical safeguards are all named categories. APPI's breach notification duty to the PPC also creates a strong incentive to know your actual security posture before an incident forces you to disclose it.

Investor & Insurer Due Diligence

Regulation aside, two commercial forces now push in the same direction. Cyber insurers increasingly require a completed security questionnaire — MFA enforcement, conditional access, privileged account controls — before binding or renewing a policy, and will point to gaps in exactly those areas to deny a claim after a breach. Investors performing technical due diligence ahead of a funding round or acquisition routinely request evidence of identity governance over the target's core SaaS estate, because Microsoft 365 is where the client data, IP, and financial records actually live. A clean, recent audit turns both conversations from a scramble into a formality.

What Actually Gets Checked in an M365 & Entra ID Audit

A properly scoped audit works through nine areas. Each maps to a distinct attack path, so skipping any one of them leaves a real gap, not a theoretical one.

1. Secure Score Baseline

Microsoft Secure Score is a single number, but it's a starting point, not a target. The audit reads through the underlying recommendations, discards the ones that don't apply to your licensing tier or business model, and treats the rest as a prioritized backlog rather than a score to chase for its own sake.

2. Entra ID Conditional Access Policies

Conditional access is the policy engine that decides who can sign in, from where, on what device, and under what risk conditions. The audit checks whether policies actually cover every user (a policy that excludes break-glass accounts is fine; one that quietly excludes half the sales team is not), whether legacy "security defaults" have been superseded by tenant-specific policies, and whether high-risk sign-ins trigger step-up authentication rather than nothing at all.

3. MFA Coverage

Not "is MFA enabled" — which admin console is technically enabled and actual enforced coverage are two different numbers, often by a wide margin. The audit measures real per-user enforcement, checks whether service accounts and shared mailboxes are quietly exempted (a common and dangerous gap), and verifies that phishing-resistant methods are available for privileged accounts specifically.

4. Purview DLP (Data Loss Prevention)

Microsoft Purview's DLP engine can block or flag sensitive data leaving the tenant via email, Teams, or SharePoint/OneDrive — but only if policies are actually configured for the data types that matter to your business (client financial records, source code, personal data subject to PDPA/PDPO/APPI). The audit checks policy coverage against your real data types, not the out-of-the-box templates alone.

5. Exchange Online & Mailbox Hardening

Mailbox rules are a favorite persistence mechanism for attackers who've already gained a foothold — a silent forwarding rule can exfiltrate every invoice and contract for months before anyone notices. The audit reviews inbox forwarding rules, mail flow connectors, anti-phishing and anti-spoofing policies (SPF/DKIM/DMARC), and external sender warnings.

6. Intune Device Compliance

If a device isn't enrolled and compliant, conditional access policies that depend on device state can't actually enforce anything on it. The audit checks enrollment coverage, compliance policy strictness (disk encryption, OS patch level, jailbreak/root detection), and whether non-compliant devices are actually blocked from accessing corporate data or merely nagged about it.

7. Admin Role Sprawl

Every standing Global Administrator is a standing risk. The audit inventories who holds privileged Entra ID roles, how many of those assignments are permanent versus just-in-time via Privileged Identity Management (PIM), and whether former employees or long-departed vendors still hold roles nobody remembered to revoke — a shockingly common finding.

8. Guest Access & External Sharing

B2B collaboration is genuinely useful and genuinely risky in the same breath. The audit reviews guest user lifecycle (are guests reviewed and removed when a project ends, or do they accumulate indefinitely?), default SharePoint/OneDrive external sharing settings, and whether "anyone with the link" sharing is available tenant-wide by default.

9. Legacy Authentication Protocols

Legacy protocols like POP, IMAP, and older Exchange ActiveSync connections don't support modern authentication and can't be protected by conditional access or MFA at all — which makes them the single most common entry point in credential-stuffing attacks against Microsoft 365 tenants. The audit confirms legacy auth is fully blocked, not just deprioritized, and checks for any legacy app registrations quietly keeping a back door open.

Self-Serve Scanning Tool vs. a Managed M365 Audit

Both approaches surface findings; they differ in what happens next.

Self-serve tool (Qualys/Tenable-style scanner): Runs automated checks against your tenant and returns a report — often hundreds of findings with generic severity labels, no context on which ones actually matter for your business, and no help interpreting Microsoft's own conflicting recommendations. Someone on your team still has to triage, prioritize, and implement every fix.

Brocent managed audit: A qualified engineer reviews the same nine areas against your actual licensing, business context, and regulatory exposure, delivers a prioritized findings report ranked by real exploitability (not generic CVSS scores), and can implement the agreed remediations directly rather than handing you a list. For most APAC mid-market teams without a dedicated security headcount, that difference is the whole value of the engagement.

How Brocent's Quick Security Check Works

Brocent runs a banded-pricing Microsoft 365 Security Audit (the Quick Security Check) sized to tenant user count, so pricing scales predictably as you grow rather than requiring a fresh quote every time. The audit walks through all nine areas above against your live tenant configuration, produces a findings report ranked by exploitability and regulatory relevance for your specific APAC jurisdiction, and — where you want it — Brocent can implement the priority fixes directly rather than leaving you with a document to action alone.

It pairs naturally with vulnerability scanning for organizations that also run on-premises or hybrid infrastructure alongside Microsoft 365, and with our broader managed IT security services for teams that want ongoing monitoring rather than a point-in-time check. Companies assembling a full security baseline sometimes bundle both audit types together — see the security starter bundle for that packaged option.

How to Prepare Before the Audit Begins

The audit itself requires very little preparation on your side, but a few pieces of information speed the engagement up considerably and get you a sharper findings report.

Tenant admin access: The auditor needs a temporary, scoped read-access role (Global Reader or a similarly limited built-in role, never a standing Global Administrator grant) to review configuration across Entra ID, Exchange Online, Intune, and Purview without being able to change anything themselves.

Licensing inventory: Knowing which Microsoft 365 and Entra ID licensing tiers are actually assigned — not just purchased — lets the auditor separate "not configured" findings from "not available on your plan" findings, which matters a great deal for prioritization.

Regulatory context: Which jurisdictions your data touches (mainland China, Hong Kong, Singapore, Malaysia, Taiwan, Japan, or a mix) changes which findings carry compliance weight versus which are simply good practice. Flagging this up front lets the report speak directly to your actual obligations rather than a generic checklist.

A named internal owner: Even when Brocent implements the remediations directly, someone on your side needs the authority to approve changes that touch user experience — for example, rolling out step-up authentication or blocking legacy protocols that a handful of older devices still rely on. Naming that person before the audit starts avoids a stalled remediation phase after the findings report lands.

None of this needs to be perfect going in — part of the audit's job is surfacing exactly the gaps in your own visibility, including gaps in the inventory itself. Organizations that have never done any kind of security review of their Microsoft 365 tenant should expect the first audit to surface more findings than a subsequent quarterly check; that's normal, and it's precisely the baseline the audit exists to establish.

What Happens After the Audit?

An audit report that sits in an inbox unread doesn't reduce risk. The findings should convert into three tracks: quick wins implemented within days (blocking legacy auth, closing obvious guest access gaps), a scoped remediation plan for anything that needs change management or user communication (rolling out phishing-resistant MFA, tightening conditional access), and a recurring review cadence — quarterly is typical — since Microsoft's own recommended baseline shifts as new features ship. Organizations under MLPS, PDPA, PDPO, or APPI obligations should keep the audit report and remediation evidence on file; it's exactly what a regulator, insurer, or investor will ask to see.

Keep the evidence trail practical rather than decorative: a dated findings report, a remediation log showing what changed and when, and screenshots or exported configuration snapshots for the handful of controls (conditional access policies, MFA enforcement, DLP rules) that regulators and insurers most commonly ask to see directly. A folder of that material, updated after every quarterly review, is worth far more in an actual due-diligence conversation than a polished slide deck produced after the fact.

Frequently Asked Questions

How long does a Microsoft 365 and Entra ID security audit take?

A standard tenant review typically takes one to two weeks from kickoff to final findings report, depending on tenant size and how many of the nine review areas apply to your licensing tier. Complex hybrid-identity environments (on-premises AD synced to Entra ID) usually run toward the longer end.

Do we need a specific Microsoft 365 license tier for this audit to be useful?

No. Even Business Standard and Business Premium tenants benefit — most of the nine areas (MFA, mailbox hardening, guest access review, legacy auth) are available regardless of tier. Higher tiers (E5, or add-ons like Entra ID P2 and Purview add-ons) unlock more advanced controls like risk-based conditional access and deeper DLP, which the audit will flag as recommended upgrades where relevant rather than assuming you already have them.

Is this the same as a penetration test?

No. A penetration test actively tries to exploit your environment from the outside; an M365/Entra ID audit is a configuration and governance review of the tenant itself. The two are complementary — many organizations run a configuration audit first to close the obvious gaps, then a penetration test to validate what's left.

Which APAC regulations actually require this kind of audit?

None of MLPS, PDPA (Singapore/Malaysia/Taiwan), PDPO (Hong Kong), or APPI (Japan) name "Microsoft 365 audit" specifically — they require demonstrable, appropriate security controls over personal and business data. Since Microsoft 365 and Entra ID are where that data typically lives for APAC mid-market companies, an audit is the practical way to produce the evidence those laws actually ask for.

What's the single most common finding in these audits?

Incomplete MFA enforcement — organizations that believe MFA is "on" because it's on for most users, without realizing service accounts, shared mailboxes, or a handful of legacy-protocol connections are quietly exempted. Legacy authentication being left open is a close second.

Can Brocent fix what the audit finds, or just report on it?

Both. The Quick Security Check includes the findings report, and Brocent can implement the agreed remediations directly as part of the engagement rather than leaving the fixes to your internal team.

How often should we re-run the audit?

Quarterly is a reasonable default for most mid-market tenants, with an additional ad-hoc audit after any major change — a merger, a new regulatory obligation, a significant headcount change, or a security incident anywhere in the organization.

Does this audit cover our on-premises infrastructure too?

The Quick Security Check is scoped to the Microsoft 365 and Entra ID cloud tenant. For on-premises and hybrid infrastructure, pair it with vulnerability scanning, or start from the combined security starter bundle if you're building a baseline from scratch.

If your organization operates anywhere across China, Hong Kong, Singapore, Malaysia, Taiwan, or Japan and hasn't reviewed its Microsoft 365 and Entra ID configuration in the last twelve months, that gap is worth closing before a regulator, insurer, or investor asks about it first. Get in touch to scope a Quick Security Check for your tenant, or see current pricing for all Brocent security services.