Cybersecurity

Suspected Chinese breach of FBI system exposed surveillance targets’ phone numbers

Access to this data could help foreign hackers determine who the U.S. is spying on.

North Korea-linked hackers suspected in Axios open-source hijack, Google analysts say

“The full breadth of this incident is still unclear, but given the popularity of the compromised package, we expect it will have far reaching impacts,” a chief Google analyst said.

DHS drops investigation into former acting CISA chief’s failed polygraph exam

“We are pleased that the CISA personnel punished by previous DHS and CISA leadership for doing their jobs have been cleared of wrongdoing and invited back to work, as we demanded three months ago,” said a joint statement from Democratic Reps. Bennie Thompson and Eric Swalwell.

Pro-Iran hackers claim breach of FBI director’s email

The leaks appear to be authentic, according to a person familiar with the matter.

Lawmakers question VPN impact on Americans' FISA surveillance protections

Democrats from both chambers sent a letter questioning the impacts to the Director of National Intelligence as Congress faces a deadline to renew FISA Section 702, which allows warrantless collection of foreigners’ communications overseas.

EU wants to support bedrock cyber vulnerability program, top official says

U.S. congressional staffers are also working on legislation to give CISA more oversight of the Common Vulnerabilities and Exposures program after a contracting incident last April.

European officials highlight private sector help in major cybercrime takedowns

Industry helped European law enforcement groups in operations that tracked and dismantled assets tied to major cybercrime gangs like Scattered Spider.

Ex-NSA leaders say Americans are becoming ‘numb’ to cyber threats

A serious cyberattack hasn’t prompted a strong enough policy or public reaction, one former director said.

Google launches threat disruption unit, stops short of calling it ‘offensive’

The unit will use legal authorizations and technical capabilities to impede cyber threat groups, though company execs say it will not go so far as to hack into adversaries' systems.

CISA, FBI have engaged with Stryker staff after cyberattack, official says

Industry groups are seeing a “steady state” of Iran-linked hacking activity but observers should still keep their eyes peeled, CISA’s Nick Andersen said.

National cyber director doesn’t envision industry doing offensive hacking

Sean Cairncross wants the private sector to use its technical prowess to inform U.S. government offensive and defensive decisions.

FBI queries of Americans’ data under FISA 702 rose 35% in 2025

The controversial spying power, which allows agencies to access foreigners’ overseas communications without a warrant, will expire in April unless Congress renews it. The White House is pushing for a clean extension.

CISA launches investigation into Stryker cyberattack

The hack arguably represents the most significant cyber incident linked to the recent Iran war.

Suspected pro-Iran hacker group tied to Stryker cyberattack

“We are currently experiencing a global network disruption affecting the Windows environment. Our teams are actively working to restore systems and operations. Stryker has business continuity measures in place, and we’re committed to serve our customers,” the company said in a statement.

Trump’s new cyber strategy details more offensive response to cyber threats

“Unlike other Administrations, the Trump Administration will not tinker at the edges and apply partial measures and ambiguous strategies that neglect the growing number and severity of cyber threats,” the strategy said.