Cisco Talos Blacklist Removal
By DrGlenn — USA-based WordPress security specialist· 290+ cleanups across 34 countries· Updated June 22, 2026
Quick answer: Look up your domain at talosintelligence.com/reputation_center, remediate the issue, then file a Web Reputation dispute (a free Cisco login is required).
Is Cisco Talos blocking your website?
If your site is listed by Cisco Talos — a “Poor”/“Untrusted” reputation in the Talos Reputation Center, blocked by Cisco Secure Web / Umbrella — it usually means it was hacked or abused at some point. Here is how to get cleaned up and delisted.
Step 1 — Make sure the site is actually clean
Requesting delisting while the problem is still live just gets you re-listed. Check first:
- Run my free Is My Site Hacked? checker.
- Cross-check on VirusTotal.
If anything turns up, get it fully cleaned first — removing the visible malware is not enough if a backdoor remains.
Step 2 — Request delisting from Cisco Talos
Cisco Talos takes web-reputation disputes via its Reputation Center (free Cisco login required). Start here: talosintelligence.com reputation center
- Look up your domain/IP at talosintelligence.com/reputation_center to see the score and category.
- Remediate the issue (clean malware, remove spam) before disputing.
- Sign in with a free Cisco account.
- Submit a Web Reputation dispute with evidence of cleanup.
- Track resolution in your Talos account.
Good to know: A free Cisco login is required to file a ticket; disputes are typically answered within ~1 business day. Talos data refreshes about every 3 hours, so changes are not instant.
Step 3 — If it keeps coming back
A listing that returns means the infection or abuse was never fully resolved — usually a backdoor, a rogue admin, or malware in the database. As a USA-based WordPress security specialist I remove it completely, submit the delistings for you, and harden the site so it stays clean.
Get my site cleaned · See how it works · read my client reviews.
More guides: SURBL, PhishTank, SORBS · all blacklist & antivirus guides · full report-link directory.
How to check if your website is blacklisted anywhere else lists the official lookup tool for each vendor.
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