U.S. wireless telecom UScellular, a regional carrier serving roughly 5 million customers, says a data breach at a third-party vendor resulted in a leak of 52,000 names and email addresses. The company confirmed that data from the leak is available for download on a criminal data breach forum.
Proofpoint has focused on preventing cyberattacks, but customers have increasingly asked for help with blocking lateral movement from compromised identities, says CEO Ashan Willy. Acquiring Illusive in December will help Proofpoint block identity attack paths when a user is compromised.
Criminals lately have been prioritizing two types of attacks: exploiting Remote Desktop Protocol and penetrating cloud databases. So warns cyber insurer Coalition, based on analyzing in-the-wild attacks seen in 2022 via underwriting and claims data, scans of IP addresses and honeypots.
Security director Ian Keller, rants about the insider threat and the massive role leadership plays in changing people's behavior so they don't become one. As Keller says, "The way you treat people is directly reflected in how they treat you and your business."
What's not to love about an international law enforcement operation visiting disruption on Hive, the ransomware-wielding crime syndicate? But with no suspects in jail, it's unclear how long this takedown might stick before the bad guys reboot or rebrand.
In the latest weekly update, four ISMG editors discuss why it pays off to have well-practiced incident response plans, whether ChatGPT is a blessing or a curse for penetration testers and bug bounty hunters, and how Microsoft has reason to be cheerful as security sales hit $20 billion.
Data breaches in 2022 hit near-record levels as U.S. organizations issued 1,802 data breach notifications and more than 400 million individuals were affected. But only 34% of breach notifications included actionable information for consumers whose information was exposed.
Microsoft blamed an internal network configuration change for outages that disrupted access to Microsoft 365 services, including Microsoft Teams and Outlook, for users around the world. The change has been rolled back and additional infrastructure added to speed restoration, it says.
A North Korean hacking group tracked by cybersecurity firm Proofpoint as TA444 in December unleashed a torrent of spam in a bid to harvest credentials - evidence of a hacking group that mirrors "startup culture in its devotion to the dollar and to the grind."
Serial entrepreneur Arvind Parthasarathi has started the company Cygnvs, which streamlines and secures communication between internal and external stakeholders after a cyberattack. Cygnvs emerged from stealth with 90 employees, 1,000 customers, $55 million of funding and a generally available tool.
Thoma Bravo, Vista Equity Partners and rival Francisco Partners have set their sights on a new target: Sumo Logic. Each of the three private equity firms has approached the Silicon Valley-based data analytics software vendor expressing interest in a possible acquisition, The Information reports.
eSentire has used the $325 million it received in February to leverage data from its Atlas XDR platform and strengthen customers' positions around cyber resiliency. The Kitchener, Canada-based company has shifted its focus from alerts and data to business worries and business risk.
T-Mobile disclosed Thursday that hackers had access for approximately six weeks to an application programming interface that exposed customer data including names, birthdates and email addresses. No payment information or passwords were part of the breach, the company said.
Essential reading for network defenders: CircleCI's report into its recent breach, which began when malware infected an engineer's laptop. After stealing "a valid, 2FA-backed" single sign-on session cookie, attackers stole customers' secrets and gained unauthorized access to third-party systems.
The total amount of ransom payments being sent by victims to ransomware groups appears to have taken a big dip, declining by 40% from $766 million in 2021 to $457 million in 2022 due to victims simply being unwilling to pay, blockchain intelligence firm Chainalysis reports.
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