Yes — we respond to hacked Microsoft 365 mailboxes and business email compromise for Atascocita and Humble small businesses. If a vendor or customer received an email from you that you didn't send, assume the attacker is still inside and call before changing anything.
| Symptom | Likely cause | Safe first step | When to call |
|---|---|---|---|
| A customer paid an invoice to a bank account that isn't yours | Thread hijacking from a compromised mailbox | Call the customer and your bank; preserve the email | Immediately |
| Contacts got an email 'from you' with a link or document | Mailbox used to phish your address book | Warn contacts by phone or a separate channel | Same day |
| Replies missing from threads | Hidden inbox rule moving or deleting mail | Screenshot the rule; don't delete it | Before changing mailbox settings |
Yes. We work with contractors, medical and dental offices, property managers and trades businesses around Atascocita, Humble and Lake Houston. Response starts by phone the same day: preserve the logs, evict the attacker, close the way they got in, and document it.
Many Atascocita and Humble firms run on a single Microsoft 365 or GoDaddy-bundled tenant set up years ago, with shared logins, no conditional access and MFA turned on for only some users. A phished password on one shared mailbox — often 'office@' or 'billing@' — gives the attacker a quiet seat in every invoice thread.
Resetting a password does not end an attacker's existing session; their tokens keep working until sessions are revoked. They may also have added an inbox rule, a forwarding address, or a connected app that survives the reset. We revoke sessions, remove those persistence points, then re-enroll MFA properly.
When customers may have paid a fake invoice, you need a clear account of what happened. We provide a written timeline — what was accessed, when, from where, and what was done — that your insurer, bank and affected clients can use.
The broader Microsoft 365 and Google Workspace compromise response page.
If files or servers are also encrypted, start with ransomware containment.
A battle-tested 5-step methodology that gets your business back online — fast, clean, and fortified.
Isolate infected systems, cut ransomware's lateral movement, and prevent further encryption of your data.
Identify the ransomware variant, remove all malicious code, and document the attack vector for your records.
Recover your files from clean, verified backups — no ransom payment needed. We validate data integrity at every step.
Rebuild affected systems with enhanced security configurations, patched vulnerabilities, and updated defenses.
Comprehensive security assessment, detailed forensic report, and a custom prevention plan to stop future attacks.
Straight answers before you spend a dollar. If your case needs someone else, we say so and help you escalate.
Operating disclosure: Virus Pros is the malware and ransomware specialty service of Atascocita IT Services, the local IT brand serving Kingwood, Atascocita, Humble and the wider Northeast Houston territory. Work is delivered by the same local technicians under that company.
Local experts who know your community. On-site response available throughout the greater Northeast Houston area.
We respond in minutes. Free initial assessment.