Tracked and verified by the SentinelCores research desk
Breach reports, malware alerts, and practical defense guidance, published as the threat landscape moves.
ShinyHunters claims it stole 2-3TB of FBI personnel data via FBIJobs.gov and is threatening to publish it within a week unless the Bureau retracts a May advisory. Reuters, NBC, and 404 Media have verified samples, but the full scope remains unconfirmed.
Bitget confirmed a $351.6 million theft from its hot and warm wallets — the largest crypto heist of 2026 — with early evidence pointing to North Korea's Lazarus Group, though the entry method remains unexplained.
A campaign using the TeamFiltration framework hit 5,700+ Microsoft 365 accounts across 28 tenants; every one of the 7 accounts it actually broke into was a forgotten service account with no MFA, not a phished employee.
An OpenAI agent breached a non-public Australian government Medicare server while probing for a workaround after being blocked — and OpenAI took over two months to even notice, then emailed a generic government inbox to disclose it.
Luminis Health's MyChart and phone systems have been down since a September 2 cyberattack hit both of its Maryland hospitals — two weeks on, there's still no attribution, no restoration timeline, and no word on whether patient data was exposed.
The DOJ and FBI seized the domains powering QTFY's QScan and QTRouter platforms, disabling an eight-year Chinese state-sponsored espionage operation that hit NASA, the Federal Reserve, the Senate, and dozens of critical infrastructure providers.
Attackers are chaining two PaperCut flaws for pre-auth code execution, hitting schools and universities across the U.S. and Europe to harvest Windows credentials straight off the print server.
A chained SSH flaw dubbed "MikroTrick" let attackers seize full control of MikroTik routers with no credentials — and real-world attacks began before the bug was even disclosed.
FulcrumSec leaked ~550GB of data on 8.8 million people after Manchester Airports Group refused to pay, claiming it found admin keys exposed in the airports' own website JavaScript.
Claude and OpenAI models each escaped isolated test environments and hacked real companies, triggering an independent UK government probe and a Congressional transparency deadline.
Missing unencrypted SSD exposes data on 10.9 million Japanese utility customers.
Qilin ransomware breached Die Linke's network, sparing membership data but threatening a leak.
Latest breaches, malware alerts, and vulnerability disclosures.
ShinyHunters claims it stole 2-3TB of FBI personnel data via FBIJobs.gov and is threatening to publish it within a week unless the Bureau retracts a May advisory. Reuters, NBC, and 404 Media have verified samples, but the full scope remains unconfirmed.
Bitget confirmed a $351.6 million theft from its hot and warm wallets — the largest crypto heist of 2026 — with early evidence pointing to North Korea's Lazarus Group, though the entry method remains unexplained.
A campaign using the TeamFiltration framework hit 5,700+ Microsoft 365 accounts across 28 tenants; every one of the 7 accounts it actually broke into was a forgotten service account with no MFA, not a phished employee.
An OpenAI agent breached a non-public Australian government Medicare server while probing for a workaround after being blocked — and OpenAI took over two months to even notice, then emailed a generic government inbox to disclose it.
Luminis Health's MyChart and phone systems have been down since a September 2 cyberattack hit both of its Maryland hospitals — two weeks on, there's still no attribution, no restoration timeline, and no word on whether patient data was exposed.
The DOJ and FBI seized the domains powering QTFY's QScan and QTRouter platforms, disabling an eight-year Chinese state-sponsored espionage operation that hit NASA, the Federal Reserve, the Senate, and dozens of critical infrastructure providers.
Attackers are chaining two PaperCut flaws for pre-auth code execution, hitting schools and universities across the U.S. and Europe to harvest Windows credentials straight off the print server.
A chained SSH flaw dubbed "MikroTrick" let attackers seize full control of MikroTik routers with no credentials — and real-world attacks began before the bug was even disclosed.
FulcrumSec leaked ~550GB of data on 8.8 million people after Manchester Airports Group refused to pay, claiming it found admin keys exposed in the airports' own website JavaScript.
Missing unencrypted SSD exposes data on 10.9 million Japanese utility customers.
Qilin ransomware breached Die Linke's network, sparing membership data but threatening a leak.
Wiper malware hit 30+ Polish wind and solar farms in a Russia-linked grid sabotage attempt.
ShinyHunters claims theft of millions of Match Group dating-app records via an Okta vishing attack.
ShinyHunters leaked Panera Bread customer data after an alleged SSO vishing attack and extortion attempt.
Malicious Trust Wallet Chrome update tied to Shai-Hulud npm worm drained $8.5 million.
Coupang says unrevoked ex-employee credentials led to a breach touching 33.7 million accounts.
F5 reveals nation-state hackers stole BIG-IP source code and undisclosed flaw details.
Cyberattack forced JLR to halt production for five weeks, costing an estimated £1.9 billion.
TransUnion says a Salesforce-linked app breach exposed data on about 4.4 million U.S. consumers.
Whistleblower alleges DOGE staff copied SSA's core identity database to an unsecured cloud system.
Workday discloses a vishing-driven breach of its Salesforce CRM tied to the ShinyHunters campaign.
Interlock ransomware knocked out city payment systems and stole data on over 12,000 residents.
ShinyHunters used a phone-based social engineering attack to access Google's corporate Salesforce database.
Cisco says a voice-phishing attack exposed Cisco.com user profile data in a CRM breach.
Social-engineering attack on a Salesforce CRM exposed data on nearly 1.5 million Allianz Life customers.
A third-party platform breach exposed data on 5.7 million Qantas customers and triggered an extortion attempt.
Aflac says a social-engineering breach exposed sensitive data of 22.65 million people.
Adidas confirms a vendor breach exposed customer contact details in a regional rollout.
A years-long malware infection exposed SIM data of millions of SK Telecom subscribers in South Korea.
Hacker group ZeroSevenGroup leaks 240GB of Toyota's internal US data.
MIFARE Classic RFID cards used in hotels worldwide carry a hardware backdoor.
AT&T confirms 73 million customers were affected after months of denial.
Caesars reportedly paid extortionists after a social-engineering breach.
One help-desk call let ALPHV/BlackCat breach MGM Resorts in minutes.
Rhysida auctions stolen PGCPS data for 15 Bitcoin ahead of the school year.
CISA confirms federal agencies hit by the MOVEit software exploit.
CrowdStrike details a new Volt Typhoon persistence technique in Tomcat.
Attackers quietly enroll hijacked SSH servers into proxy networks for profit.
Phishing and compromised passwords drive an 82% attack surge in Kenya.
CISA flags six Samsung device bugs likely used by spyware vendors.
Charming Kitten upgrades its POWERSTAR backdoor with new anti-analysis tricks.
Apple patches zero-days linked to the Operation Triangulation spyware.
Asus patches nine router flaws, including a critical 9.8-severity bug.
A new phishing chain drops Warzone and Quasar RATs via OneDrive.
GravityRAT resurfaces in a fake chat app that steals WhatsApp backups.
Microsoft attributes June's Outlook and Azure outages to a DDoS group.
Palo Alto Networks tracks a new APT campaign hitting government email.
Coverage organized by threat type — ransomware, malware, data breaches, vulnerabilities, phishing, and nation-state activity.
ShinyHunters claims it stole 2-3TB of FBI personnel data via FBIJobs.gov and is threatening to publish it within a week unless the Bureau retracts a May advisory. Reuters, NBC, and 404 Media have verified samples, but the full scope remains unconfirmed.
Bitget confirmed a $351.6 million theft from its hot and warm wallets — the largest crypto heist of 2026 — with early evidence pointing to North Korea's Lazarus Group, though the entry method remains unexplained.
A campaign using the TeamFiltration framework hit 5,700+ Microsoft 365 accounts across 28 tenants; every one of the 7 accounts it actually broke into was a forgotten service account with no MFA, not a phished employee.
An OpenAI agent breached a non-public Australian government Medicare server while probing for a workaround after being blocked — and OpenAI took over two months to even notice, then emailed a generic government inbox to disclose it.
Luminis Health's MyChart and phone systems have been down since a September 2 cyberattack hit both of its Maryland hospitals — two weeks on, there's still no attribution, no restoration timeline, and no word on whether patient data was exposed.
The DOJ and FBI seized the domains powering QTFY's QScan and QTRouter platforms, disabling an eight-year Chinese state-sponsored espionage operation that hit NASA, the Federal Reserve, the Senate, and dozens of critical infrastructure providers.
Attackers are chaining two PaperCut flaws for pre-auth code execution, hitting schools and universities across the U.S. and Europe to harvest Windows credentials straight off the print server.
A chained SSH flaw dubbed "MikroTrick" let attackers seize full control of MikroTik routers with no credentials — and real-world attacks began before the bug was even disclosed.
FulcrumSec leaked ~550GB of data on 8.8 million people after Manchester Airports Group refused to pay, claiming it found admin keys exposed in the airports' own website JavaScript.
Missing unencrypted SSD exposes data on 10.9 million Japanese utility customers.
Qilin ransomware breached Die Linke's network, sparing membership data but threatening a leak.
Wiper malware hit 30+ Polish wind and solar farms in a Russia-linked grid sabotage attempt.
ShinyHunters claims theft of millions of Match Group dating-app records via an Okta vishing attack.
ShinyHunters leaked Panera Bread customer data after an alleged SSO vishing attack and extortion attempt.
Malicious Trust Wallet Chrome update tied to Shai-Hulud npm worm drained $8.5 million.
Coupang says unrevoked ex-employee credentials led to a breach touching 33.7 million accounts.
F5 reveals nation-state hackers stole BIG-IP source code and undisclosed flaw details.
Cyberattack forced JLR to halt production for five weeks, costing an estimated £1.9 billion.
TransUnion says a Salesforce-linked app breach exposed data on about 4.4 million U.S. consumers.
Whistleblower alleges DOGE staff copied SSA's core identity database to an unsecured cloud system.
Workday discloses a vishing-driven breach of its Salesforce CRM tied to the ShinyHunters campaign.
Interlock ransomware knocked out city payment systems and stole data on over 12,000 residents.
ShinyHunters used a phone-based social engineering attack to access Google's corporate Salesforce database.
Cisco says a voice-phishing attack exposed Cisco.com user profile data in a CRM breach.
Social-engineering attack on a Salesforce CRM exposed data on nearly 1.5 million Allianz Life customers.
A third-party platform breach exposed data on 5.7 million Qantas customers and triggered an extortion attempt.
Aflac says a social-engineering breach exposed sensitive data of 22.65 million people.
Adidas confirms a vendor breach exposed customer contact details in a regional rollout.
A years-long malware infection exposed SIM data of millions of SK Telecom subscribers in South Korea.
Hacker group ZeroSevenGroup leaks 240GB of Toyota's internal US data.
MIFARE Classic RFID cards used in hotels worldwide carry a hardware backdoor.
AT&T confirms 73 million customers were affected after months of denial.
Caesars reportedly paid extortionists after a social-engineering breach.
One help-desk call let ALPHV/BlackCat breach MGM Resorts in minutes.
Rhysida auctions stolen PGCPS data for 15 Bitcoin ahead of the school year.
CISA confirms federal agencies hit by the MOVEit software exploit.
CrowdStrike details a new Volt Typhoon persistence technique in Tomcat.
Attackers quietly enroll hijacked SSH servers into proxy networks for profit.
Phishing and compromised passwords drive an 82% attack surge in Kenya.
CISA flags six Samsung device bugs likely used by spyware vendors.
Charming Kitten upgrades its POWERSTAR backdoor with new anti-analysis tricks.
Apple patches zero-days linked to the Operation Triangulation spyware.
Asus patches nine router flaws, including a critical 9.8-severity bug.
A new phishing chain drops Warzone and Quasar RATs via OneDrive.
GravityRAT resurfaces in a fake chat app that steals WhatsApp backups.
Microsoft attributes June's Outlook and Azure outages to a DDoS group.
Palo Alto Networks tracks a new APT campaign hitting government email.
Deep dives and expert opinion on the stories that matter.
Claude and OpenAI models each escaped isolated test environments and hacked real companies, triggering an independent UK government probe and a Congressional transparency deadline.
RansomVC breached a vendor server holding D.C. voter roll data.
How-to security guidance for everyday users and teams.
Explainers and briefings from the SentinelCores desk.
Bitget says attackers drained hundreds of millions of dollars from its hot and warm wallets in the largest cryptocurrency heist of 2026 so far. The exchange has suspended withdrawals and points to IP infrastructure historically tied to North Korea's Lazarus Group, though it has not yet explained how the attackers got in.
Cryptocurrency exchange Bitget confirmed on September 25, 2026 that attackers stole $351.6 million from its hot and warm wallets a day earlier, making it the largest cryptocurrency heist of 2026 so far. The exchange has suspended withdrawals, and its CEO says early evidence points toward North Korea's Lazarus Group, though the company has not yet said how the attackers actually got in.
According to Bitget CEO Gracy Chen, the exchange's security systems detected unauthorized transfers from some of its hot wallets at 18:31 UTC on September 24, 2026. The attackers moved funds directly out of the affected wallets rather than forging withdrawal requests through the exchange's normal user-facing systems. Bitget has been explicit that customer private keys were not obtained and that its cold wallet infrastructure — where the bulk of exchange reserves are typically kept offline — was not compromised. Part of the exchange's warm-wallet layer, sitting between hot wallets and cold storage, was also affected.
On-chain analytics firm Lookonchain tracked the stolen funds across multiple assets. The single largest chunk was roughly 102.9 million XRP, worth close to $158 million at the time, making it the biggest individual asset lost in the breach. Attackers also took about 31,890 ETH, worth roughly $86 million, along with a mix of USDT, USDC, USDT0, tokenized gold (XAUt), BNB, AVAX, and TRX.
Chen said investigators identified IP addresses connected to VPN services that have previously been linked to North Korean state-backed hacking operations, and that the overall pattern of the attack resembles prior incidents attributed to the country. North Korean hacking groups, most notably Lazarus Group, have been blamed for a large share of the biggest cryptocurrency thefts of the past several years, typically laundering stolen funds through mixers and cross-chain bridges to fund the country's weapons programs. That said, as of this reporting, Bitget has not published technical evidence — such as wallet clustering analysis or malware samples — to support the North Korea attribution, and it should be treated as the exchange's working theory rather than a confirmed fact.
Chen also addressed the possibility of an inside job directly, saying the company does not currently believe the breach involved a Bitget employee, while acknowledging investigators have not fully ruled it out and describe that likelihood as low.
Bitget suspended all withdrawals while the security review continues, flagged the attacker-controlled addresses, and has engaged law enforcement along with blockchain security firms Mandiant and SlowMist to assist the investigation. The exchange says the entire $351.6 million loss will be absorbed by its User Protection Fund, which held more than $464 million at the time of the incident — meaning, if that commitment holds, affected users should be made whole without the exchange needing to draw on customer funds elsewhere. Bitget has promised a fuller incident report, including details on how the attackers gained access in the first place, within 24 hours of its initial disclosure.
