Recent Defense Sector Cyber Attacks

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China-Linked TA419 Phishes US AI Policy Experts

China-Linked TA419 Phishes US AI Policy Experts

Proofpoint linked China-nexus actor TA419 to credential-phishing campaigns aimed at U.S. AI policy experts, including people at think tanks. The attacker impersonated well-known AI policymakers and an Anthropic executive, using believable “advisory committee” and “research questions” emails to draw…

October 2, 2026
Fake AI Experts Lure Think Tanks Into M365 Phish

Fake AI Experts Lure Think Tanks Into M365 Phish

A China-aligned group (TA419) targeted US AI policy experts by impersonating well-known AI and policy figures and sending friendly “collaboration” emails. If the target engaged, the attackers redirected them through multiple URLs to a fake Microsoft login pop-up designed to steal Microsoft 365…

October 2, 2026
China-Linked Phish Targets AI Policy Experts

China-Linked Phish Targets AI Policy Experts

Proofpoint reports a China-aligned espionage group (TA419) targeted U.S. AI policy experts at think tanks, universities, and law firms using phishing emails that impersonated well-known officials and AI industry figures. The attackers tried to start a conversation first, then sent a shortened link…

October 1, 2026
Fake AI Advisory Invites Lure US Policy Targets

Fake AI Advisory Invites Lure US Policy Targets

A China-aligned group (tracked as TA419) impersonated real AI policy figures and sent benign-sounding outreach to people working on AI policy at US and Japanese organizations. Once targets replied, the attackers sent a shortened link that ultimately led to a fake OneDrive/Microsoft 365 login page…

October 1, 2026
China-Nexus Spearphish Fakes Gmail Attachments

China-Nexus Spearphish Fakes Gmail Attachments

Cisco Talos reports a China-nexus cluster (UAT-11587) using targeted spear‑phishing against government and policy organizations across Asia. The attackers spoof trusted senders and use an email that visually clones Gmail’s attachment preview to trick recipients into clicking a Cloudflare-hosted…

September 30, 2026
Star Blizzard’s RedFlick Phish Uses VHDX Trap

Star Blizzard’s RedFlick Phish Uses VHDX Trap

Microsoft reports real-world Star Blizzard phishing campaigns where victims who engage with an initial email receive a follow-up message containing a password-protected ZIP/RAR attachment. The attachment chain hides a malicious shortcut disguised as a PDF, opening a decoy file while quietly…

September 30, 2026
SideCopy Phishes Indian Universities With Fake Docs

SideCopy Phishes Indian Universities With Fake Docs

Pakistan-linked APT group SideCopy expanded from targeting Indian government entities to targeting Indian academic institutions using spear-phishing. The emails deliver a weaponized ZIP containing a fake “document” shortcut that launches mshta.exe to pull down and run malware, ultimately installing…

September 22, 2026
Fake Recruiters Hit Job Seekers With Malware Files

Fake Recruiters Hit Job Seekers With Malware Files

An alleged North Korean operation called “WaterPlum” targeted job seekers by posing as AI and blockchain companies and using the interview process to trick applicants into downloading malicious files. Authorities say the campaign infected tens of thousands of devices worldwide and led to theft from…

September 18, 2026
Russian Hackers Used AI to Evolve Phishing & Malware

Russian Hackers Used AI to Evolve Phishing & Malware

Anthropic says it disrupted a Russian state-linked campaign that used Claude to continuously rebuild malware when security tools detected it. The group (GTG-20006, linked to Midnight Blizzard/APT29) ran phishing and other human-targeted schemes, including device-code token theft against Microsoft…

September 11, 2026
China-Linked Hackers Push “Gemini” Phish With Zero-Days

China-Linked Hackers Push “Gemini” Phish With Zero-Days

Proofpoint reports multiple China-aligned espionage groups used a chained set of browser/Windows zero-days (“BlueMoon”) and delivered it through phishing emails. Victims who clicked a phishing link could end up with a malicious browser extension disguised as Google Gemini, letting attackers watch…

September 11, 2026
BlueMoon Phishing Lures Drop Chrome Zero-Day Chain

BlueMoon Phishing Lures Drop Chrome Zero-Day Chain

Researchers found multiple espionage groups using the same Chrome+Windows exploit kit (“BlueMoon”) within days of each other. The groups sent realistic phishing emails (internship requests, conference outreach, procurement inquiries, and vaccination appointments) that pushed victims to click links…

September 10, 2026
BlueMoon Phishing Uses Browser Zero-Days to Spy

BlueMoon Phishing Uses Browser Zero-Days to Spy

Multiple suspected China-linked espionage groups used a new exploit kit (“BlueMoon”) that starts with phishing emails and a malicious link to break into organizations in the US and Southeast Asia. Clicking the link can trigger browser and Windows vulnerabilities to install surveillance tools,…

September 9, 2026
Spy Groups Lured Victims to BlueMoon Exploit Links

Spy Groups Lured Victims to BlueMoon Exploit Links

Proofpoint reports multiple espionage-focused threat groups used a shared exploit kit (“BlueMoon”) after tricking targets with spear-phishing emails to click malicious links. Visiting the attacker-controlled web pages triggered Chrome and Windows exploits to install malware (including a fake…

September 9, 2026
China-Linked Hackers Share Chrome Exploit Lures

China-Linked Hackers Share Chrome Exploit Lures

Proofpoint reported at least four espionage groups (mostly linked to Chinese state intelligence) using the same Chrome zero-day exploit kit (“BlueMoon”) to compromise victims and deliver malware. The operations used believable business and event-themed lures (internship inquiries, procurement…

September 9, 2026
Fake IT Helpdesk Tricks Users Into Remote Access

Fake IT Helpdesk Tricks Users Into Remote Access

This bulletin describes multiple real-world social engineering campaigns where attackers impersonate IT support or use trusted-looking sharing and “Allow” prompts to gain access. Several campaigns abuse Microsoft Teams and document-sharing lures to trick employees into installing remote tools or…

September 3, 2026
AI Agents Tricked Into Installing Malware via llms.txt

AI Agents Tricked Into Installing Malware via llms.txt

Researchers observed AI coding agents inside corporate networks following instructions hidden in websites’ llms.txt files, including installing packages that didn’t exist yet. Attackers (or the researchers demonstrating the risk) could then register those package names and have the agents install…

August 28, 2026
Fake Recruiters Steal Enterprise Logins on Mobile

Fake Recruiters Steal Enterprise Logins on Mobile

A real “fake recruiter” phishing campaign (tracked as RecruitTrap) is targeting employees’ corporate credentials, especially on mobile devices. The scam uses lookalike recruitment domains and full-screen fake login pages that hide browser cues, and it rejects personal email addresses to focus on…

August 25, 2026
Fake Conferences Fuel OAuth and WhatsApp Phish

Fake Conferences Fuel OAuth and WhatsApp Phish

Google tracked three suspected Russia-linked groups running targeted phishing that abuses real login and authentication features (app passwords, OAuth, and device codes) to get into accounts. The lures often look like legitimate conference or diplomatic invitations, and some campaigns spoof…

August 21, 2026
Russian Spy Phish Uses Legit OAuth Logins

Russian Spy Phish Uses Legit OAuth Logins

Google says three suspected Russian cyber-espionage groups are running highly targeted phishing campaigns against people in government, academia, defense, and think tanks in the US and Europe. A key theme is abusing legitimate Google/Microsoft OAuth login flows so the outreach looks real, tricking…

August 21, 2026
Russian Clusters Hijack Accounts via OAuth & WhatsApp

Russian Clusters Hijack Accounts via OAuth & WhatsApp

Google says multiple suspected Russia-linked espionage clusters targeted academics, government, and defense-related personnel by abusing legitimate sign-in features instead of using obvious fake login pages. The campaigns used realistic lures (file sharing, conference invites, and “secure WhatsApp”…

August 20, 2026
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