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Research lab

Cisco Talos

Cisco Talos is Cisco's threat intelligence unit, researching malware, vulnerabilities, and nation-state and criminal cyber activity.

Known aliases

  • blog.talosintelligence.com
  • Cisco Talos Intelligence Group
  • Cisco Talos Threat Intelligence
  • Talos
  • Talos Intelligence
  • Talos Threat Intelligence

Current stories

securityOne report1 publisher

Salt Typhoon logged into telecom network gear with stolen credentials in all but one case Talos examined

Cisco Talos's February 2025 analysis of Salt Typhoon's telecom intrusions found the actor used stolen legitimate logins on Cisco devices in all but one case. It then pulled more logins from weakly encrypted router configs and captured TACACS and RADIUS keys, so credentials stored on network gear are the first exposure for defenders to close.

Reality

Evidence68
Adoption
Not scored
Hype gap+5
Incentives40
Confidence66
securityOne report1 publisher

Fake event invites route Taiwan research staff through a live Google login proxy

Cisco Talos tracks UAT-11985, an APT sending Taiwan research affiliates fake event invites that lead to a Google login proxy capturing MFA codes. The proxy relays entries to Google in real time, so a code typed into the fake page reaches the attacker first.

Reality

Evidence58
Adoption
Not scored
Hype gap+10
Incentives
Not scored
Confidence60
securityConfirmed4 publishers

Open staging directories and GitHub history expose UAT-6275's four-chain campaign against CIS governments

Cisco Talos and Recorded Future tie a June 2025 to August 2026 campaign against CIS governments to UAT-6275. Talos rates its Kazakhstan nexus at medium confidence, and Recorded Future tracks the same activity as TAG-193.

Perspective Coverage

4 publishers
Builder
Builder 15%
Operator
Operator 56%
Investor
Investor 29%

Reality

Evidence68
Adoption
Not scored
Hype gap+8
Incentives35
Confidence66
securityOne report1 publisher

Talos reports CVE volume up 105% on the year against 37% growth in CISA's KEV catalog

Cisco Talos counts more than 70,000 CVEs by the end of September, up 105% on a year earlier, while CISA's KEV catalog grew 37%. Its newsletter says the backlog of exploited bugs from older CVEs is where the patching work sits.

Reality

Evidence40
Adoption
Not scored
Hype gap−15
Incentives
Not scored
Confidence50
securityOne report1 publisher

Malware's best tricks against AI analysis tools worked in about 35% of Talos test runs

Cisco Talos says the best text that malware authors plant to steer AI analysis tools tipped results their way in about 35% of test runs. The text has to sit in plaintext, so each attempt also gives defenders a string to hunt for.

Reality

Evidence55
Adoption25
Hype gap+5
Incentives40
Confidence55
securityOne report1 publisher

Templated event invites and doctored posters lure Taiwan researchers into a live Google login relay

Cisco Talos says UAT-11985 used fake event invitations to phish Taiwanese research staff through a kit that relays Google logins and MFA challenges live. For the people those invitations target, the useful control is a second factor the relay cannot pass along.

Reality

Evidence58
Adoption
Not scored
Hype gap+5
Incentives35
Confidence55
securityOne report1 publisher

Talos discloses eight patched flaws, including two Foxit Reader code-execution bugs

Cisco Talos disclosed eight vendor-patched flaws in Foxit Reader, Windows, Photoshop's installer and macOS CoreWLAN. The two Foxit Reader bugs reach code execution from an attacker's file, so Reader is the update to confirm on endpoints first.

Reality

Evidence60
Adoption
Not scored
Hype gap+5
Incentives35
Confidence60
buildOne report1 publisher

Cisco's CVSS 10 firewall-manager bypass is now being exploited to run code as root

Cisco confirmed on September 9 that attackers are exploiting a CVSS 10.0 bypass in its Firewall Management Center to run code as root. CISA added it to its Known Exploited Vulnerabilities list the same day, with a three-day deadline for federal agencies.

Publishers:dev.to

Reality

Evidence62
Adoption
Not scored
Hype gap0
Incentives
Not scored
Confidence64
securityConfirmed3 publishers

China-nexus UAT-11587 runs its Antino backdoor through Outlook and OneDrive

Cisco Talos links China-nexus UAT-11587 to 16 affected or targeted institutions in eight Asian countries, via a backdoor run through Microsoft 365. Its commands move through Outlook and OneDrive via Microsoft Graph, so defenders have no command server to block.

Perspective Coverage

3 publishers
Builder
Builder 32%
Operator
Operator 63%
Investor
Investor 5%

Reality

Evidence62
Adoption30
Hype gap+8
Incentives
Not scored
Confidence65
buildOne report1 publisher

Qilin ransomware affiliate logged into Cisco firewall management with a credential scored 5.3

Cisco Talos says three threat clusters are exploiting a CVSS 10.0 pre-auth root bypass and a 5.3 hard-coded credential in Secure Firewall Management Center. A patch policy with a severity cutoff above 5.3 would have skipped the credential fix on the console that pushes policy to every managed firewall.

Publishers:dev.to

Reality

Evidence58
Adoption
Not scored
Hype gap0
Incentives
Not scored
Confidence55
securityConfirmed7 publishers

CLOSEDQUORUM puts its next action to a vote of four commercial LLM providers

Cisco Talos found a 16.4MB Go implant that asks DeepSeek, Qwen, Mistral and Gemini what to do next and acts on the winning vote, treating the providers themselves as its C2 infrastructure. Talos has no confirmation it was ever deployed.

Perspective Coverage

7 publishers
Builder
Builder 28%
Operator
Operator 66%
Investor
Investor 6%

Reality

Evidence58
Adoption
Not scored
Hype gap+30
Incentives45
Confidence62
securityOne report1 publisher

Talos describes $300 'consultancy' calls that screen security staff for insider access

Talos says a $300 offer for an hour's phone consultation is the first stage of a con that screens security practitioners for useful access. Targets who pass end up paid to pull non-public material from co-workers and internal systems.

Reality

Evidence30
Adoption
Not scored
Hype gap+15
Incentives
Not scored
Confidence40
securityConfirmed6 publishers

Cisco's own July 23 log indicator predates its August date for FMC exploitation

CVE-2026-20079 hands unauthenticated attackers root on Secure Firewall Management Center. CISA wants federal boxes fixed by September 12. The hot fix closes the path but does not evict anyone who already walked it.

Perspective Coverage

6 publishers
Builder
Builder 23%
Operator
Operator 65%
Investor
Investor 12%

Reality

Evidence80
Adoption
Not scored
Hype gap+15
Incentives60
Confidence74
securityOne report1 publisher

Thirteen npm packages ship a stripped-down stealer that uploads Chrome's extension storage wholesale

OpenSourceMalware says WeaselBiscuit borrows functions from DPRK's BeaverTail and OtterCookie but strips out the persistence and the wallet drainer. It runs from memory on an npm import and takes Chrome's extension storage.

Reality

Evidence50
Adoption
Not scored
Hype gap+10
Incentives
Not scored
Confidence50
securityOne report1 publisher

Eclypsium finds the month's exploited infrastructure flaws again in the management consoles

Eclypsium tracked 158 infrastructure advisories between August 25 and September 17. The exploited maximum-severity flaws it highlights are authentication bypasses in Cisco's Firewall Management Center and Identity Services Engine.

Reality

Evidence62
Adoption72
Hype gap+14
Incentives65
Confidence58
buildOne report1 publisher

Talos finds a Windows implant that puts each attack step to a four-LLM vote

Cisco Talos read CLOSEDQUORUM statically: a Go binary that polls DeepSeek, Qwen, Mistral and Gemini before it touches LSASS. The distributed sample has dummy keys. One answering provider can carry the vote.

Publishers:dev.to

Reality

Evidence58
Adoption8
Hype gap+25
Incentives60
Confidence55
leadershipOne report1 publisher

Cisco Talos finds malware that hands its command-and-control decisions to four voting models

Cisco Talos says its CLOSEDQUORUM sample asks four language models for executable decisions, tallies the votes and acts on the winner. An entire phase of the attack runs while the operator is offline.

Publishers:csoonline.com

Reality

Evidence50
Adoption8
Hype gap+40
Incentives62
Confidence54

Earlier coverage

  1. Talos argues defenders are already behind the models they have

    Security · September 17, 2026 · One report1 publisher

  2. Seven RAT families, one actor: what SilkParasite does to behavioural clustering

    Security · August 27, 2026 · Confirmed2 publishers