Cisco says hackers have been exploiting a critical bug to break into big customer networks since 2023

The U.S. government and its allies said hackers have been exploiting the newly identified bug in Cisco networking gear around the world for years, and urged organizations to patch.

US cybersecurity agency CISA reportedly in dire shape amid Trump cuts and layoffs

Under the first year of the Trump administration, the U.S. cyber agency CISA has faced cuts, layoffs, and furloughs, as bipartisan lawmakers and cybersecurity industry sources say the agency is unprepared to handle a crisis.

Marquis sues firewall provider SonicWall, alleges security failings with its firewall backup led to ransomware attack

Fintech giant Marquis is suing its firewall provider SonicWall, claiming that an earlier breach with SonicWall allowed hackers to deploy ransomware on Marquis’ network.

Dutch phone giant Odido says millions of customers affected by data breach

The Dutch phone giant Odido is the latest phone and internet company to be hacked in recent months, as governments and financially motivated hackers continue to steal highly confidential information about phone customers.

Singapore says China-backed hackers targeted its four largest phone companies

The Singaporean government said the China-backed hackers gained “limited access to critical systems” run by the country’s top four telecommunication giants, but said they did not disrupt services or steal customers’ data.

Senator, who has repeatedly warned about secret U.S. government surveillance, sounds new alarm over ‘CIA activities’

The two-line letter to the CIA’s director is the latest warning in recent years from a long-serving Democratic senator with knowledge of secret government programs and intelligence operations.

Substack confirms data breach affects users’ email addresses and phone numbers

Substack said that customer data was accessed in October 2025, but wasn’t discovered until early February.

Researchers say Russian government hackers were behind attempted Poland power outage

Security researchers have attributed the attempted use of destructive “wiper” malware across Poland’s energy infrastructure in late December to a Russian-backed hacking group known for causing power outages in neighboring Ukraine.

Under Armour says it’s ‘aware’ of data breach claims after 72M customer records were posted online

TechCrunch obtained a sample of the stolen data, which contained names, email addresses, dates of birth, and the user’s approximate geographic location. Under Armour confirmed some sensitive information was taken in the breach.