Cybersecurity Brief – 2026-06-12

Fri, 12 Jun 2026 00:00:00 +0000

Major Incidents or Breaches

Danish pharmaceutical company Novo Nordisk disclosed a data breach impacting patient information from certain clinical trials^[13].
The French government confirmed a breach of its encrypted Tchap messaging platform, affecting over 73,000 public sector employee accounts^[15].
Kyushu Electric Power in Japan reported a physical security incident involving the loss of a drive containing personal data of 10.9 million clients^[16].
South Korean e-commerce firm Coupang was fined a record $409 million by the Personal Information Protection Commission following a massive data breach^[21].
Fake breach disclosures were submitted to Maine’s official breach portal and published publicly before verification, constituting a misinformation campaign^[17].

Newly Discovered Vulnerabilities

Oracle PeopleSoft Suite was found to contain a critical zero-day vulnerability (CVE-2026-35273) allowing unauthenticated remote code execution, exploited in the wild by the ShinyHunters group. Oracle has released mitigations^[6]^[18]^[33]^[34].
Three security flaws in LangGraph, including a critical chain enabling remote code execution, have been disclosed and patched^[3].
Researchers demonstrated that OpenClaw, a self-hosted AI agent, can be manipulated to execute attacker-controlled code or leak sensitive data^[7].
A new BitLocker bypass exploit for Windows, dubbed GreatXML, has been released, enabling attackers to circumvent BitLocker protections via recovery partition XML files^[8].
Google Chrome 149 update addressed 28 vulnerabilities, including several critical and high-severity issues such as use-after-free bugs^[31].
Hackers are exploiting a Langflow vulnerability that allows unauthenticated file writes and potential remote code execution^[38].

Notable Threat Actor Activity

The ShinyHunters extortion group exploited the Oracle PeopleSoft zero-day to breach enterprise and university systems, steal data, and extort victims^[6]^[18]^[33]^[34].
The Gentlemen ransomware group has claimed 478 victims and is capable of worm-like propagation, conducting double extortion attacks^[9].
The OnyxC2 stealer malware is being marketed to cybercriminals for $250 per month, targeting over 200 applications and using evasion techniques such as encrypted payloads, DLL sideloading, and in-memory execution^[37].
Attackers are using a spoofed ChatGPT download site, leveraging sponsored search results and SEO manipulation, to deliver malware^[1].
Fake FACEIT verification pages are being used to steal Steam accounts via convincing phishing attacks^[40].

Trends, Tools, or Tactics of Interest

Phishing attack volume has decreased by 20 percent, but attackers are focusing on more sophisticated, AI-enhanced campaigns, increasing overall risk^[23].
AI-driven attacks are challenging the effectiveness of traditional MSP security stacks, highlighting the need for integrated security, automation, and rapid response^[20].
Alert fatigue is becoming a significant risk, with organisations turning to AI and automation to better triage and respond to security alerts^[35].
Device-Bound Session Credentials, recently released by Google, provide enhanced protection against local cookie theft but remain susceptible to phishing and hacking^[2].
There is a growing trend among CISOs to shift budgets from traditional vulnerability management to breach and attack simulation (BAS) solutions due to the speed at which AI is enabling vulnerability weaponisation^[12].

Regulatory or Policy Developments Affecting the Security Industry

The US Cybersecurity and Infrastructure Security Agency (CISA) issued Binding Operational Directive 26-04, requiring federal agencies to prioritise and patch actively exploited vulnerabilities, with a specific three-day deadline for critical flaws such as those in Ivanti Sentry^[14]^[22]^[24]^[30]^[36].
A German court has ruled that Google can be held liable for false or defamatory content generated by its AI Overviews, rejecting the defence that “AI can make mistakes”^[41].
Authorities in Europe dismantled the AudiA6 cryptocurrency laundering service, which was used by ransomware groups and criminal networks to launder over $380 million^[5]^[19].
INTERPOL, through Operation Ramz, took down the Sniper Dz phishing-as-a-service platform and arrested its administrator^[4].

Sources

Pharma giant Novo Nordisk discloses breach of clinical trials data - bleepingcomputer.com
Over 73,000 French govt employees affected in Tchap messenger breach - bleepingcomputer.com
Japanese energy firm loses drive with data of 10.9 million clients - bleepingcomputer.com
Coupang hit with record $409 million data breach fine in Korea - bleepingcomputer.com
Maine breach portal abused to publish fake data breach disclosures - bleepingcomputer.com
ShinyHunters Exploits Oracle PeopleSoft Zero-Day (CVE-2026-35273) to Breach Universities - thehackernews.com
Oracle mitigates PeopleSoft zero-day exploited in data theft attacks - bleepingcomputer.com
Google Confirms Exploitation of Oracle PeopleSoft Zero-Day by ShinyHunters - securityweek.com
Oracle Addresses PeopleSoft Vulnerability Amid Reports of Zero-Day Attacks - securityweek.com
LangGraph Flaw Chain Exposes Self-Hosted AI Agents to Remote Code Execution - thehackernews.com
New Attacks Trick OpenClaw AI Agent Into Running Code and Leaking Secrets - thehackernews.com
New GreatXML Exploit Bypasses Windows BitLocker via Recovery Partition XML Files - thehackernews.com
Chrome 149 Update Patches 28 Vulnerabilities - securityweek.com
Hackers Exploit Langflow Vulnerability for Remote Code Execution - securityweek.com
The Gentlemen Ransomware Claims 478 Victims, Can Spread Like a Worm - thehackernews.com
OnyxC2 Stealer Offers Cybercriminals Enterprise-Grade Theft for $250 a Month - securityweek.com
Attackers Use Spoofed ChatGPT Site to Deliver Malware - blog.knowbe4.com
Fake verification pages are stealing Steam accounts from players - malwarebytes.com
Phishing Attack Volume Down 20%, but Risk Still Rising - darkreading.com
Why AI-driven threats are exposing the limits of MSP security stacks - bleepingcomputer.com
Alert Fatigue Is Becoming a Security Threat of Its Own - securityweek.com
I Love Device-Bound Session Credentials, But They Are Still Phishable and Hackable - blog.knowbe4.com
AI Broke Vulnerability Management. That's Why CISOs Are Moving Budget to BAS. - thehackernews.com
CISA orders feds to patch actively exploited Ivanti flaw by Sunday - bleepingcomputer.com
CISA tells govt agencies to patch critical exploited flaws in 3 days - bleepingcomputer.com
Max-Severity Ivanti Flaw Exploited 24 Hours After Disclosure - darkreading.com
Ivanti Sentry Exploitation Attempts Hitting Honeypots - securityweek.com
CISA Directs Federal Agencies to Prioritize Security Patches Based on Risk - securityweek.com
Google can be liable for false AI Overviews, court rules - malwarebytes.com
Europol Disrupts AudiA6 Crypto Laundering Service Used by Ransomware Gangs - thehackernews.com
Authorities dismantle 'AudiA6' ransomware crypto-laundering service - bleepingcomputer.com
INTERPOL Operation Takes Down Sniper Dz Phishing Platform, Arrests Administrator - thehackernews.com

LangGraph on DanSec Daily

Cybersecurity Brief – 2026-06-12

Major Incidents or Breaches

Newly Discovered Vulnerabilities

Notable Threat Actor Activity

Trends, Tools, or Tactics of Interest

Regulatory or Policy Developments Affecting the Security Industry

Sources