--- title: Response to CISA Advisory (AA26-194A): Improve Router... description: CISA, in collaboration with international agencies, released advisory AA26-194A detailing how Russia's FSB Center 16 (also tracked as Turla, Berserk Bear, and... canonical: https://daily.dev/posts/response-to-cisa-advisory-aa26-194a-improve-router-hygiene-to-protect-against-russian-state-spons-1q3xhu5qj twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Response to CISA Advisory (AA26-194A): Improve Router Hygiene to Protect Against Russian State-Sponsored Targeting | daily.dev og:description: CISA, in collaboration with international agencies, released advisory AA26-194A detailing how Russia's FSB Center 16 (also tracked as Turla, Berserk Bear, and... og:url: https://daily.dev/posts/response-to-cisa-advisory-aa26-194a-improve-router-hygiene-to-protect-against-russian-state-spons-1q3xhu5qj og:image: https://api.daily.dev/og/posts/1q3xHu5Qj.png og:image:alt: Response to CISA Advisory (AA26-194A): Improve Router Hygiene to Protect Against Russian State-Sponsored Targeting og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Response to CISA Advisory (AA26-194A): Improve Router Hygiene to Protect Against Russian State-Sponsored Targeting **[Security Boulevard](https://daily.dev/sources/securityboulevard)** · 7 min read · 0 upvotes · 0 comments ## Summary CISA, in collaboration with international agencies, released advisory AA26-194A detailing how Russia's FSB Center 16 (also tracked as Turla, Berserk Bear, and others) exploits poorly configured routers and networking devices to compromise critical infrastructure. Attackers primarily use SNMP scanning to locate devices accepting default community strings, then exfiltrate device configurations via TFTP to actor-controlled servers. AttackIQ recommends running specific TTP emulations to validate defenses and outlines key mitigations: upgrading to SNMPv3 with authPriv, disabling legacy SNMP versions, disabling Cisco Smart Install, using strong unique passwords with secure hashing, restricting management protocol access via ACLs, blocking TFTP/SMI/SNMP ports at edge firewalls, and keeping device firmware patched. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Response to CISA Advisory \(AA25-343A\): Pro-Russia Hacktivists Conduct Opportunistic Attacks Against US and Global Critical Infrastructure](https://daily.dev/posts/response-to-cisa-advisory-aa25-343a-pro-russia-hacktivists-conduct-opportunistic-attacks-against--etypghjmt) · Security Boulevard · 0 upvotes · 0 comments - [China-linked hackers turn Cisco routers into covert attack infrastructure](https://daily.dev/posts/china-linked-hackers-turn-cisco-routers-into-covert-attack-infrastructure-uhyzgtjch) · CSO Online · 1 upvotes · 0 comments - [Telecom Attack Surface: SS7, BGP & Nation-State Intrusions](https://daily.dev/posts/telecom-attack-surface-ss7-bgp-nation-state-intrusions-v1wejqstm) · Cyble · 0 upvotes · 0 comments - [CISA warns of critical pre-auth RCE flaw in MikroTik RouterOS](https://daily.dev/posts/cisa-warns-of-critical-pre-auth-rce-flaw-in-mikrotik-routeros-xlw5r9idf) · BleepingComputer · 1 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security) [View this post on daily.dev](https://daily.dev/posts/response-to-cisa-advisory-aa26-194a-improve-router-hygiene-to-protect-against-russian-state-spons-1q3xhu5qj) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Response to CISA Advisory (AA26-194A): Improve Router Hygiene to Protect Against Russian State-Sponsored Targeting","url":"https://daily.dev/posts/response-to-cisa-advisory-aa26-194a-improve-router-hygiene-to-protect-against-russian-state-spons-1q3xhu5qj","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/response-to-cisa-advisory-aa26-194a-improve-router-hygiene-to-protect-against-russian-state-spons-1q3xhu5qj"},"datePublished":"2026-07-15T18:51:16.552Z","dateModified":"2026-07-15T18:52:18.247Z","description":"CISA, in collaboration with international agencies, released advisory AA26-194A detailing how Russia's FSB Center 16 (also tracked as Turla, Berserk Bear, and...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8fe9eeb967de205fd6743e2535f16178?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8fe9eeb967de205fd6743e2535f16178?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Security Boulevard","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Security Boulevard","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/3613c832180040de8d85bb29f74395be","url":"https://daily.dev/sources/securityboulevard"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/response-to-cisa-advisory-aa26-194a-improve-router-hygiene-to-protect-against-russian-state-spons-1q3xhu5qj","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"security","timeRequired":"PT7M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Security Boulevard","item":"https://daily.dev/sources/securityboulevard"},{"@type":"ListItem","position":3,"name":"Response to CISA Advisory (AA26-194A): Improve Router Hygiene to Protect Against Russian State-Sponsored Targeting"}]} ```