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China questioned Nvidia over suspected backdoors in its H20 chips, adding to rising tensions in the tech fight between the U.S. and Beijing. China’s internet watchdog has summoned Nvidia over concerns that its H20 AI chips may contain hidden backdoors. Nvidia H20 chips are AI GPUs tailored for the Chinese market, based on Hopper architecture. […]
Storm-2603 group exploits SharePoint flaws and uses a custom C2 framework, AK47 C2, with HTTP- and DNS-based variants named AK47HTTP and AK47DNS. Check Point Research is tracking a ToolShell campaign exploiting four Microsoft SharePoint flaws, linking it to China-nexus groups APT27, APT31, and a new cluster, Storm-2603. The researchers pointed out that Storm-2603’s goals remain […]
Russia-linked Secret Blizzard targets foreign embassies in Moscow via ISP-level AitM attacks, deploying custom ApolloShadow malware. Microsoft researchers uncovered a cyberespionage campaign by the Russia-linked APT group Secret Blizzard (aka Turla, Snake, Uroburos, Waterbug, Venomous Bear and KRYPTON) targeting foreign embassies in Moscow. The threat actor uses an adversary-in-the-middle (AiTM) method at the ISP level to deploy custom malware called ApolloShadow. This […]
OPINION — In his recent Cipher Brief essay, CIA’s Latest Existential Challenge, former CIA senior officer Mark Kelton argues that the Central Intelligence Agency faces an “existential challenge” – a crisis of public trust in a hyper-partisan America….
China-linked group Fire Ant exploits VMware and F5 flaws to stealthily breach secure systems, reports cybersecurity firm Sygnia. China-linked cyberespionage group Fire Ant is exploiting VMware and F5 vulnerabilities to stealthily access secure, segmented systems, according to Sygnia. Since early 2025, the group has targeted virtualization and networking infrastructure, primarily VMware ESXi and vCenter environments. […]
Arizona woman gets 8 years for helping North Korea-linked threat actors to infiltrate 309 U.S. firms with fake IT jobs. Christina Marie Chapman (50) from Arizona, was sentenced to 102 months in prison for aiding North Korean IT workers in infiltrating 309 U.S. companies. She pleaded guilty to charges including aggravated identity theft, conspiracy to […]
Operation CargoTalon targets Russia’s aerospace and defense sectors with EAGLET malware, using TTN documents to exfiltrate data. SEQRITE Labs researchers uncovered a cyber-espionage campaign, dubbed Operation CargoTalon, targeting Russia’s aerospace and defense sectors, specifically Voronezh Aircraft Production Association (VASO), via malicious TTN documents. “Товарно-транспортная накладная” (TTN) is a “goods and transport invoice” or “consignment note” used […]
OPINION — Spain’s recent decision to award Huawei a contract worth €12.3 million to manage and store legally authorized wiretaps raises significant concerns about the country’s commitment to digital sovereignty. This move jeopardizes Spain’s national …
Microsoft linked SharePoint exploits to China-nexus groups Linen Typhoon, Violet Typhoon, and Storm-2603, active since July 7, 2025. Microsoft confirmed that China-linked groups Linen Typhoon, Violet Typhoon, and Storm-2603 exploited SharePoint flaws for initial access as early as July 7, 2025. “As of this writing, Microsoft has observed two named Chinese nation-state actors, Linen Typhoon […]
While SentinelOne did not attribute the attack to a specific threat actor, The Washington Post linked it to China-nexus acors. On July 19, Microsoft confirmed active exploitation of a zero-day vulnerability, tracked as CVE-2025-53770 in on-prem SharePoint Servers. The IT giant issued emergency patches for SharePoint Subscription Edition and 2019, with 2016 updates pending. Microsoft […]