Email security & anti-phishing · Burlington, Ontario
Email Security & Anti-Phishing for Burlington Businesses
Email remains the most common entry point for compromise. We deploy layered filtering, correctly configured SPF, DKIM and DMARC authentication, and controls aimed specifically at business email compromise and invoice fraud.
What this covers
- SPF, DKIM and DMARC configured and enforced, not just published
- Advanced filtering for phishing, malware and impersonation
- Business email compromise and invoice fraud controls
- Safe link and attachment detonation for suspicious content
- User-reported phishing triage and takedown
01Why email needs layered defence
Filtering, authentication and process, together
No single control stops phishing reliably. Layered defence catches what one layer misses at the next.
SPF, DKIM and DMARC together let receiving mail servers verify that a message claiming to be from your domain actually originated from an authorised source. Many organizations have SPF published but no DMARC policy enforcing action on failures, which leaves domain spoofing largely unaddressed. We configure all three and move DMARC to an enforcement policy in stages, monitoring reports along the way so legitimate mail is not accidentally blocked.
On top of authentication sits content filtering: attachment detonation in a sandbox, link rewriting with time-of-click checking, and impersonation detection that flags messages mimicking executives or vendors — the mechanism behind most business email compromise losses. These are financially motivated attacks rather than opportunistic malware, and they are increasingly the more expensive category of incident for Canadian small and mid-sized organizations.
Filtering reduces volume, but staff still need a fast way to report what gets through. A one-click reporting button feeds a triage process that can pull a message from every mailbox it reached, closing the window between one person spotting a phish and everyone else being exposed to it.
02What's included
Scope of email security services
Configuration, filtering and process across your Microsoft 365 or Google Workspace environment.
- SPF record configuration and validation
- DKIM signing setup across all sending sources
- DMARC policy staged to enforcement, with reporting review
- Advanced threat protection: sandboxing and safe links
- Impersonation and executive spoofing detection
- Business email compromise pattern detection
- Quarantine management and release workflow
- User-reported phishing button and triage
- Mailbox rule auditing for forwarding abuse
- External sender tagging and warning banners
- Bulk mail and newsletter classification tuning
- Post-incident message trace and takedown
03Business email compromise
Controls aimed specifically at BEC and payment fraud
Business email compromise bypasses malware detection entirely by using compromised or spoofed accounts to request fraudulent payments.
Domain authentication
Enforced DMARC materially reduces the ability of an attacker to send convincing spoofed mail from your exact domain.
Look-alike domain monitoring
Newly registered domains that closely resemble yours are a common BEC precursor and are flagged for review where monitoring is in place.
Payment change verification process
We help establish an out-of-band verification step for banking detail changes and large payment requests, which stops most BEC losses regardless of how convincing the email is.
Mailbox rule monitoring
Attackers who gain access often set silent forwarding or deletion rules to hide their activity; these are audited for and flagged.
Compromised account response
A documented process for password reset, session revocation and forensic review runs immediately when an account shows signs of compromise.
Awareness reinforcement
BEC scenarios are included in staff phishing simulation, since the wording of these attacks differs from bulk malware phishing.
FAQCommon questions
Questions Burlington organizations ask
We already have Microsoft 365's built-in filtering — why add more?
Default filtering catches known threats but leaves gaps in sandboxing, impersonation detection and DMARC enforcement. Layered configuration closes those gaps without replacing the platform you already pay for.
What is DMARC enforcement and why does it matter?
A DMARC policy of 'none' only monitors; policies of 'quarantine' or 'reject' actually stop spoofed mail from your domain reaching inboxes. Moving to enforcement requires care to avoid blocking legitimate senders, which is why it is staged.
How do you handle business email compromise specifically?
Through a combination of domain authentication, mailbox rule monitoring, and an out-of-band verification process for payment and banking changes, since BEC often defeats technical filtering entirely and relies on the payment approval process instead.
What happens when a phishing email is reported?
The reported message is analysed, and if confirmed malicious, it is removed from every mailbox it reached, the sender is blocked, and any users who interacted with it are checked for compromise.
NEXTRelated capabilities
Email security works best paired with awareness training
Technical controls stop most phishing; trained staff catch what gets through.
Providing Two Decades of IT Experience
Request an IT assessment for your Burlington organization
We review your current environment, security posture, cloud footprint and support model, then outline what to fix first and what it should cost.