Cybersecurity challenges
Microsoft 365 is powerful. But it’s not secure by default.
Built-in tools like Exchange Online Protection (EOP) and Microsoft Defender for Office 365 help with spam and low-level threats. But they struggle when attackers get smart — especially across email, web, and cloud apps.
Targeted phishing. Domain spoofing. Cloud-delivered malware. Misconfigured sharing permissions. These are the gaps attackers aim for. And they’re gaps Microsoft won’t always catch.
What Microsoft 365 security misses
- Defender misses modern, low-signal threats like CEO fraud, social engineering, and impersonation
- Zero-day links and payloads can bypass filters
- No emergency inbox for outages or continuity support
- Native archiving lacks compliance-grade tools
- Cloud app traffic often escapes visibility entirely
- Misconfigured security policies leave users and data exposed
Microsoft delivers a lot — but it’s still your responsibility to secure your users and data. Don’t worry though, you don’t need to rip out Microsoft 365. You just need a platform that strengthens it.
TrustLayer Mail strengthens Microsoft 365 where it counts
TrustLayer Mail adds inline protection through Microsoft 365 connectors — no MX record changes, no delivery delays, and no rerouting traffic.
It inspects every message across inbound, outbound and internal flows in real time, stopping impersonation attempts, payloads and policy violations before they reach the inbox.
Deployment takes minutes, not days, and once it’s live, users won’t even notice — but threats will.
- Advanced phishing and impersonation protection
- Real-time link and attachment scanning
- Flexible DLP and policy enforcement
- Emergency inbox for continuity
- Rapid deployment via a 5-step wizard
TrustLayer Browse protects what Defender can’t see
Attackers don’t just rely on email. Links open in browsers. Payloads are downloaded from cloud apps. That’s where TrustLayer Browse takes over.
It inspects web traffic and cloud usage in real time, blocking access to malicious content, unknown domains and risky SaaS behaviours — even when the email filter missed the bait. When Mail and Browse work together, threats are shut down before they spread.
- Blocks malicious URLs missed by email filters
- Controls uploads, downloads and app usage
- Detects risky cloud activity Defender can’t see
- Shares threat intelligence with Mail for cross-channel protection
TrustLayer Posture closes the config gaps
Microsoft 365 misconfigurations are one of the easiest wins for attackers. TrustLayer Posture continuously scans your M365 and Google Workspace environments to flag weak sharing policies, missing MFA, overexposed permissions and more. It keeps your setup aligned with best practice — and helps you prove it.
- Scans Microsoft 365 and Google Workspace settings for weak policies
- Flags sharing, access, and MFA gaps
- Helps you stay compliant and prevent breaches caused by misconfiguration
- Filter compliance alerts by regulation
Better security, without rearchitecting your stack
You don’t need to move off Microsoft 365. You just need a platform that fills the gaps. TrustLayer One makes email, web and cloud security work together — natively, automatically, and without slowing your teams down.
Microsoft insights

TrustLayer One