Latest cybersecurity reporting from selected sources.

A U.S. government agency paid $1M to Kairos, a group focused on data theft and extortion rather than ransomware, Ransom-ISAC reports. A new case study from Ransom-ISAC reconstructs a complete data-extortion incident involving a U.S. government body and a threat actor called Kairos, using a leaked negotiation transcript and blockchain tracing of the ransom payment. […]

A U.S. government entity paid about $1 million to keep stolen files from being leaked, according to a new case study by Rakesh Krishnan for Ransom-ISAC, built on a leaked negotiation chat and the blockchain trail the payment left

CRM Data Theft Tied to OAuth Tokens Stolen From Third-Party Market Intelligence AppSalesforce disabled connections to its customer relationship management environment from third-party app Klue Battlecards as a response to a "security incident." Attackers breached Klue's platform, generated OAuth tokens for Salesforce and stole data, now being held to ransom.

FulcrumSec leaked data stolen from Novo Nordisk, claiming to have exfiltrated 1.3TB, including clinical records and AI research assets. On June 15, 2026, a data-theft extortion group calling itself FulcrumSec began leaking files from Novo Nordisk, the Danish maker of Ozempic and Wegovy, after the company refused a $25 million ransom demand. The attackers claimed […]

iRhythm disclosed a cyberattack via third-party apps where patient and proprietary data was stolen, followed by a ransom demand. iRhythm Technologies is a U.S.-based digital healthcare company specializing in remote cardiac monitoring and arrhythmia detection. Its best-known product is the Zio, a wearable patch that continuously records a patient’s heart rhythm for up to several […]

The financially motivated group is combining vishing, IT impersonation, and in-person office intrusions to steal data and extort victims.

The Silent Ransom Group extortion gang is actively targeting U.S. law firms and professional services organizations in social engineering attacks that often lead to data theft within hours of initial contact, according to a new report by cybersecurity firm Mandiant. [...]

Cybercrime group ShinyHunters leaked data allegedly stolen from Charter Communications, exposing millions of customer records after a failed extortion attempt. The ShinyHunters extortion group has published data allegedly stolen from Charter Communications after the company apparently refused to pay a ransom. Charter Communications is one of the largest telecommunications companies in the United States. It […]

The FBI warned that the extortion gang Silent Ransom Group is targeting law firms and social-engineering its way into servers and databases.

The FBI warned on Tuesday that the Silent Ransom Group (SRG) extortion gang is now targeting U.S.-based law firms in in-person data theft attacks. [...]

U.S. telecommunications giant Charter Communications has confirmed it suffered a data breach after the ShinyHunters extortion group threatened to leak stolen data unless a ransom is paid. [...]

American educational technology company Instructure, the parent company of Canvas, said it reached an "agreement" with a decentralized cybercrime extortion group after it breached its network and threatened to leak stolen information from thousands of schools and universities

ShinyHunters, a prolific cybercrime group, threatened to leak data from more than 8,800 school systems. The post Instructure claims hackers returned stolen Canvas data after an extortion standoff appeared first on CyberScoop.

ShinyHunters has escalated its Canvas extortion campaign, defacing hundreds of school login pages and threatening to leak stolen data unless institutions negotiate

Some attackers, which researchers link to The Com, have swatted company executives to increase leverage and pressure victims to pay their ransom demands. The post BlackFile actively extorting data-theft victims in retail and hospitality sector appeared first on CyberScoop.

Home security giant ADT has confirmed a data breach after the ShinyHunters extortion group threatened to leak stolen data unless a ransom is paid. [...]

The Seiko USA website was defaced over the weekend, displaying a message from attackers claiming they stole its Shopify customer database and threatening to leak it unless a ransom is paid. [...]

CRM-Obsessed ShinyHunters Gang Exploits Misconfigured Customer Experience PortalsA prolific and noisy cybercrime gang with a penchant for stealing Salesforce customers' data and holding it ransom is taking advantage of misconfigured guest accounts meant to provide public access to services meant to remain private, using a Google scanning tool to identify vulnerable accounts.

Revenue From Supply-Chain Attacks by Clop Group Sharply Fell, Report InvestigatorsOnce lucrative steal-and-leak campaigns pioneered by Russian ransomware group Clop look set to go the way of the dinosaurs. While an estimated 25% of victims paid a ransom in the inaugural campaign five years ago, the number of victims that paid fell to zero by 2023, report ransomware responders.

ShinyHunters Campaign Uses Voice Phishing to Bypass MFA and Steal Corporate DataSecurity experts warn that "an active and ongoing campaign" being waged by ShinyHunters extortionists has at least 150 organizations in its sights across a range of sectors, with attackers using live voice phishing to bypass multifactor authentication, steal cloud data and hold it to ransom.