Email sits at the center of your business. Billing, client communication, password resets, file access. When an attacker gains access, damage spreads fast. Speed matters.
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Signs Your Email Is Compromised
Watch for clear indicators.
Emails sent you did not write.
Password reset alerts you did not request.
Login alerts from unfamiliar locations.
Clients report strange messages from you.
You lose access to your own inbox.
If you see one of these, act immediately.
Step 1. Reset Your Password
Change your email password right away. Use a long, unique password. Do not reuse passwords from other systems.
If your email connects to banking, cloud storage, or business apps, reset those passwords next.
Step 2. Turn On Multi Factor Authentication
Enable multi factor authentication on the email account. Require it for every login.
This blocks most follow up access attempts.
Step 3. Check Rules and Forwarding
Attackers hide persistence inside mailbox settings.
Review inbox rules.
Remove unknown forwarding addresses.
Delete rules that auto delete or move messages.
Check recent sign in activity.
Missed rules allow ongoing access even after a password change.
Step 4. Scan All Devices
Compromised devices re expose accounts.
Run a full security scan on laptops and desktops.
Check mobile phones and tablets with email access.
Remove detected threats before logging back in.
Skipping this step invites repeat compromise.
Step 5. Notify Your Team and Contacts
Tell staff your email account was compromised.
Warn key clients and vendors.
Advise them to ignore recent suspicious messages.
This reduces phishing risk and protects trust.
Step 6. Review Business Security Controls
Email breaches expose deeper gaps.
Confirm multi factor authentication for all users.
Review email filtering and phishing protection.
Verify backups complete and restore correctly.
Provide basic security training for staff.
Most breaches start with one weak account.
Why This Matters
Email account compromise drives wire fraud, ransomware, and data loss. Many incidents escalate because response slows or steps get skipped.
Strong security processes limit damage.
Final Thoughts
Email breaches demand immediate action. Password changes alone fail when rules, devices, or access controls stay exposed. A structured response protects your business, your clients, and your reputation.
