Latest cybersecurity reporting from selected sources.

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. U.S. Government Agency Paid $1M to Data Extortion Group Kairos FBI: TeamPCP Compromised Dev Tools to […]

A U.S. government agency paid $1M to Kairos, a group focused on data theft and extortion rather than ransomware, Ransom-ISAC reports. A new case study from Ransom-ISAC reconstructs a complete data-extortion incident involving a U.S. government body and a threat actor called Kairos, using a leaked negotiation transcript and blockchain tracing of the ransom payment. […]

FBI says TeamPCP poisoned trusted developer tools to steal cloud credentials, spread malware through software updates, and extort victims. On July 2, 2026, the FBI published a FLASH alert identifying the criminal group called TeamPCP and detailing how it compromised widely used developer and security tools to steal credentials from victim environments at scale. The […]

A former EU lawmaker was hacked with Pegasus spyware while investigating its use, according to Citizen Lab. The Citizen Lab published a report documenting one of the more darkly ironic findings in recent surveillance research: former Member of the European Parliament Stelios Kouloglou was repeatedly infected with NSO Group‘s Pegasus spyware while serving on the […]

CISA confirms BlueHammer (CVE-2026-33825) is now used in ransomware attacks to gain SYSTEM privileges through Microsoft Defender. BlueHammer, tracked as CVE-2026-33825, has moved from proof-of-concept noise to real ransomware attacks in the wild, the US CISA confirms. BlueHammer allows attackers to escalate privileges locally in Microsoft Defender. The vulnerability, along with two other zero-days dubbed […]

RustDuck is a small, evolving DDoS botnet migrating to Rust. It uses advanced encryption, anti-analysis evasion, and exploits known IoT flaws. Since February 2026, researchers at QiAnXin’s XLab have been tracking a new malware family, called RustDuck, that hijacks routers, cameras, Android set-top boxes, and exposed servers, then uses them to flood targets with junk […]

Researchers found a shell injection flaw in 10 of 11 popular open-source AI agents, allowing attackers to bypass command filters. Adversa AI just published a survey, titled “GuardFall: a universal shell injection vulnerability in open-source AI agents,” of eleven open-source AI coding and computer-use agents, and the headline finding is uncomfortable: ten of them leave […]

Police arrested the alleged admin of XSS.is, a major cybercrime forum whose trusted escrow service helped power the underground economy. On 22 July 2025, French and Ukrainian police arrested a 38-year-old man in Kyiv and shut down XSS.is, the most influential Russian-language cybercrime forum of the past decade. Europol, which coordinated the operation under the […]

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a SimpleHelp flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a SimpleHelp flaw, tracked as CVE-2026-48558 (CVSS score v3.1 of 10.0), to its Known Exploited Vulnerabilities (KEV) catalog. CVE-2026-48558 is a critical authentication bypass vulnerability in SimpleHelp versions 5.5.15 and earlier and […]

Hackers stole data from 4.38 million Aflac Japan customers after accessing its systems for 10 days before the breach was detected. Aflac Japan disclosed that hackers stole the personal information of 4.38 million customers and agents after gaining access to its systems between June 15 and June 25. Attackers stole data from the company policyholder […]

Apple released updates for iOS, iPadOS, macOS, and Safari, fixing WebKit flaws, four of which were found using AI tools like Claude and Codex Apple pushed out security updates for iOS, iPadOS, macOS, and Safari on Monday, and this round comes with a twist worth noticing. Four of the WebKit vulnerabilities patched were found using […]

Attackers are exploiting a critical flaw in Oracle E-Business Suite, CVE-2026-46817, that allows remote, unauthenticated attackers to take over Oracle Payments. A critical vulnerability in Oracle E-Business Suite, tracked as CVE-2026-46817, is being actively exploited in the wild, according to cybersecurity firm Defused Cyber. “CVE-2026-46817 (CVSS 9.8 unauth HTTP takeover in Oracle E-Business) is being […]

WhatsApp will introduce usernames later this year, letting its 3 billion users connect without sharing phone numbers. WhatsApp has over three billion users, and it’s finally letting them talk to each other without exchanging phone numbers. The company announced this week that usernames are coming later this year, and reservations are open now. The problem […]

The U.S. offers up to $10M for information on Russian hackers targeting Signal and WhatsApp accounts of officials and journalists. The U.S. government is offering rewards of up to $10 million for information leading to the identification of members of the Russian-linked groups UNC5792 and UNC4221. The hackers target government officials, military personnel, journalists, and […]

Microsoft shut down the StegoAd campaign, which used 119 malicious Edge extensions, hit 2.6M installs, and ran undetected for two years. Microsoft just shut down one of the more technically clever malicious extension campaigns it’s ever documented. The operation, named StegoAd, ran 119 extensions on the Edge Add-ons store, racked up roughly 2.6 million installs, […]

Ukraine’s SSU and the FBI Just Confirmed Russian Intelligence Has Been Systematically Hacking Messenger Accounts for Years. The Security Service of Ukraine (SSU), working jointly with the FBI, has formally exposed a sustained Russian intelligence campaign targeting the messaging accounts of government officials, military personnel, politicians, and activists across Ukraine, Europe, and the United States. […]

KDDI Corporation disclosed a breach affecting up to 14.2 million email accounts after attackers exploited a vulnerability in third-party software. KDDI Corporation disclosed a data breach that exposed up to 14.2 million email accounts across six Japanese internet service providers. KDDI Corporation is one of Japan’s largest telecommunications companies. It employs more than 60,000 people […]

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter More Than 4,000 Legacy Routers Compromised by AryStinger, Turned into Global Attack Proxies for Hackers   A VBScript campaign distributed through WhatsApp deploying RMM software  Lost in relocation: analysis of a new loader distributing CASTLESTEALER   […]

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. New FBI Alert: Russian Intelligence Uses Signal Recovery Keys to Access Messages Hospitality Sector Hit by […]