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FSB Centre 16
OrganisationRU

FSB Centre 16

A unit of Russia's FSB domestic security service attributed with an SNMP-based router-hijacking campaign.

Last refreshed: 14 July 2026 · Appears in 1 active topic

Key Question

Why did NCSC name FSB Centre 16, not APT28, over the router-hijacking campaign?

Timeline for FSB Centre 16

#109 Jul

Ran an SNMP-hijacking campaign against network edge devices

Cybersecurity: Threats and Defences: NCSC names FSB Centre 16 over routers
View full timeline →
Common Questions
What is FSB Centre 16?
FSB Centre 16 is the signals-intelligence directorate of Russia's FSB, historically linked to the Berserk Bear/Dragonfly/Energetic Bear hacking activity. NCSC and 18 partner agencies named it in a 9 July 2026 advisory over an SNMP router-hijacking campaign.Source: NCSC advisory
Is FSB Centre 16 the same as APT28?
No. NCSC's 9 July 2026 advisory explicitly distinguished FSB Centre 16's SNMP router-hijacking campaign from the GRU Unit 26165/APT28 DNS-hijacking campaign named in April 2026. They are different Russian services with different tradecraft.Source: NCSC advisory
Why did NCSC publish an advisory on FSB Centre 16?
NCSC and 18 partner agencies attributed a campaign hijacking network edge devices via SNMP to FSB Centre 16, publishing the advisory on 9 July 2026 to help network operators identify and defend against the activity.Source: NCSC advisory

Background

The UK's NCSC and 18 partner agencies published a joint advisory on 9 July 2026 attributing a router-hijacking campaign that abused the SNMP protocol on network edge devices to FSB Centre 16, explicitly distinguishing it from the GRU Unit 26165/APT28 DNS-hijacking campaign named in April 2026.

Centre 16 (also known as Center 16 or the 16th Centre, and historically as military unit 71330) is the FSB's signals-intelligence directorate. It has long been linked by Western agencies to the Berserk Bear / Dragonfly / Energetic Bear intrusion activity, which has targeted energy and industrial-control networks.

The distinction from APT28 matters: FSB and GRU units run separate operations with different tradecraft and targets, and conflating them muddies attribution across the Russia-linked cyber campaigns Lowdown is tracking in both this topic and the wider Russia-Ukraine conflict.

More questions
What is FSB Centre 16 also known as?
FSB Centre 16 is also referred to as Center 16, the 16th Centre, or by its historical military unit designation 71330.