Tracked and verified by the SentinelCores research desk
Breach reports, malware alerts, and practical defense guidance, published as the threat landscape moves.
The FBI says it arrested another suspected ShinyHunters co-conspirator tied to the FBIJobs.gov breach. The suspect is unnamed and no charges are public; Dutch and Jordanian arrests came earlier.
Ransomware crews including Qilin and Inc are exploiting CVE-2026-0257, a Palo Alto GlobalProtect VPN authentication bypass patched in May, against healthcare, education, government, and energy targets that never updated.
Two critical PHP flaws (CVE-2026-109618 and CVE-2026-109619), dubbed PHP2Shell, leaked before patches existed. Emergency fixes are out, exploitation attempts are reported, and CISA says to patch or take PHP systems offline.
A nine-month-long breach of the Pentagon's Defense Manpower Data Center exposed unencrypted Social Security numbers and military personnel records for over 3 million people, only disclosed publicly this week.
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.
Latest breaches, malware alerts, and vulnerability disclosures.
The FBI says it arrested another suspected ShinyHunters co-conspirator tied to the FBIJobs.gov breach. The suspect is unnamed and no charges are public; Dutch and Jordanian arrests came earlier.
Ransomware crews including Qilin and Inc are exploiting CVE-2026-0257, a Palo Alto GlobalProtect VPN authentication bypass patched in May, against healthcare, education, government, and energy targets that never updated.
Two critical PHP flaws (CVE-2026-109618 and CVE-2026-109619), dubbed PHP2Shell, leaked before patches existed. Emergency fixes are out, exploitation attempts are reported, and CISA says to patch or take PHP systems offline.
A nine-month-long breach of the Pentagon's Defense Manpower Data Center exposed unencrypted Social Security numbers and military personnel records for over 3 million people, only disclosed publicly this week.
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.
The FBI says it arrested another suspected ShinyHunters co-conspirator tied to the FBIJobs.gov breach. The suspect is unnamed and no charges are public; Dutch and Jordanian arrests came earlier.
Ransomware crews including Qilin and Inc are exploiting CVE-2026-0257, a Palo Alto GlobalProtect VPN authentication bypass patched in May, against healthcare, education, government, and energy targets that never updated.
Two critical PHP flaws (CVE-2026-109618 and CVE-2026-109619), dubbed PHP2Shell, leaked before patches existed. Emergency fixes are out, exploitation attempts are reported, and CISA says to patch or take PHP systems offline.
A nine-month-long breach of the Pentagon's Defense Manpower Data Center exposed unencrypted Social Security numbers and military personnel records for over 3 million people, only disclosed publicly this week.
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.
FBI Director Kash Patel announced on October 9 that agents arrested another co-conspirator of the extortion group ShinyHunters. Anonymous sources say he is a Canadian arrested in Pennsylvania, but the FBI has not named him or disclosed charges. It is the third arrest made public since the group's FBI breach came to light.
The FBI has arrested another suspected member of the ShinyHunters extortion group, the third arrest made public since the group claimed in September that it had stolen personnel data from the bureau. FBI Director Kash Patel announced the arrest on October 9, 2026, calling the suspect a co-conspirator of the group believed to be responsible for the FBIjobs.gov incident. The FBI has not released the suspect's name or any charges.
This is a follow-up to our September report, ShinyHunters Claims It Hacked the FBI and Stole Data on Nearly Every Agent, which separated what the group claimed from what journalists had verified.
On the record, the picture is thin. Patel said on X and in a follow-up statement that agents arrested another suspected ShinyHunters co-conspirator earlier in the week, and that the FBI is working to dismantle the group. He did not name the person, describe their role, or say what charges they face.
Everything more specific comes from anonymous sources. The New York Times, citing two people, reported that the suspect is a Canadian man taken into custody in Pennsylvania, and CBS News reported the same nationality. A law enforcement source told CBS the suspect is believed to have been directly involved in the hack, while the Times framed the arrest as being on suspicion of involvement in the theft of FBI data. Some outlets have published a specific name, but with no charging documents public, SentinelCores is not repeating a name that no official source has confirmed.
Reporting from Reuters, CBS News, and Nextgov/FCW lays out a sequence. Details differ slightly between outlets, which we note below.
The FBI says the breach hit a platform run by an outside organization and that a contractor failed to implement a security patch. The bureau has not named the platform or vendor, and it says it has removed the contractor. Two sources told Reuters the platform is Oracle PeopleSoft and the vendor is Accenture; Accenture did not answer questions about the contractor.
ShinyHunters claimed 2 to 3 terabytes of data, and claimed a PeopleSoft zero-day, which remains unverified. A Reuters analysis of leaked samples found extensive personal information on FBI employees, details of sensitive job roles, and medical and psychiatric information. A source told CBS an internal FBI notice confirmed hackers obtained employee information. Nextgov/FCW reported that a sample supplied by the group included names, home addresses, phone numbers, and relatives' details, and identified intelligence and surveillance personnel.
Not clearly. BleepingComputer reports that the group's main representative stopped responding and their Telegram account appears deleted, but a new leak site has launched. It is unclear whether that is linked to the arrests. A law enforcement source told CBS that other suspected co-conspirators remain free. ShinyHunters has said it will not publish the FBI data, but data stolen from the bureau could still be sold or passed to others.
ShinyHunters-linked intrusions have repeatedly started with social engineering and unpatched or misconfigured third-party platforms rather than exotic exploits. The FBI's own explanation, a missed patch at a contractor, fits that pattern. For organizations, the practical points are to verify patch status on vendor-run systems, not only your own, and to train staff against phone-based phishing.
Arrests do not necessarily end the threat. Groups like this are loosely organized, and the stolen data remains in circulation. Current and former FBI employees and job applicants should watch for targeted phishing and identity-theft attempts.
SentinelCores will update this story if the Justice Department unseals charges or confirms the suspect's identity.
A nine-month-long breach of the Pentagon's Defense Manpower Data Center exposed unencrypted Social Security numbers and military personnel records for over 3 million people, only disclosed publicly this week.
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.
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.
