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…
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Security Affairs newsletter Round 583 by Pierluigi Paganini – INTERNATIONAL EDITION
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…
New FBI Alert: Russian Intelligence Uses Signal Recovery Keys to Access Messages
FBI warns Russian spies now target Signal Backup Recovery Keys, enabling access to message history and long-term account takeover. The FBI and CISA updated their March 2026 warning about Russian intelligence phishing campaigns, and the new advisory adds a detail…
Hospitality Sector Hit by Phishing Campaign Using Fake Guest Complaint Emails
Microsoft warns of a phishing campaign targeting the hospitality sector with fake guest emails that install TonRAT using resilient persistence. Microsoft Threat Intelligence published a detailed analysis on an ongoing hacking campaign against hospitality organizations that has been running since…
DirtyClone: Fourth Linux Kernel Flaw in Six Weeks Escalates to Root
DirtyClone: a Linux kernel privilege escalation that silently rewrites executables in memory, leaving no disk trace. Patch now. JFrog Security Research published a working exploit walkthrough on June 25 for CVE-2026-43503 (CVSS score of 8.8), a Linux kernel privilege escalation…
Chinese APT CL-STA-1062 Expands Attacks on Southeast Asian Critical Infrastructure With Custom Malware
Chinese-speaking APT CL-STA-1062 targeted Southeast Asian government and energy networks open-source tools, and a new TinyRCT backdoor. Palo Alto Networks Unit 42 researchers published a detailed report on a Chinese-speaking threat actor, tracked as CL-STA-1062, that has been running persistent…
Activist Phone Hacked With Cellebrite After Russia Contract Cancellation
Russian authorities used Cellebrite tools to unlock an activist’s iPhone and analyze private data despite canceled support, raising abuse concerns. On May 31, 2021, Russian security services pulled opposition activist Andrey Pivovarov off a flight at St. Petersburg airport and…
U.S. CISA adds Cisco and PTC Windchill and FlexPLM flaws to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Cisco and PTC Windchill and FlexPLM flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Cisco and PTC Windchill and FlexPLM flaws to its Known Exploited…
Third-Party Breach at Polymarket Leads to $2.94M Crypto Theft
Polymarket confirmed hackers stole funds from some users after attackers injected malicious code through a compromised third-party vendor. Polymarket confirmed that a security breach at a third-party vendor allowed attackers to inject malicious code into its website, leading to the…
macOS.Gaslight: North Korea-Linked Malware That Tries to Gaslight the Analyst
macOS.Gaslight: DPRK Rust implant for Mac with a prompt injection payload designed to fool AI-based malware analysts. SentinelLabs researchers spotted a Rust-based macOS implant, dubbed macOS.Gaslight, that surfaced in early June after an Apple XProtect update pointed to a VirusTotal…
Tata Electronics Confirms Data Breach After 630GB Leak Claim Targets Apple and Tesla
Tata Electronics confirmed a data breach after hackers claimed to steal 630GB of data, including alleged Apple supplier and Tesla documents. Tata Electronics, a major supplier to Apple and Tesla, has confirmed a cybersecurity breach weeks after stolen data was…
Curl Fixes a 25-Year-Old Bug in Its Largest CVE Release Yet
Curl fixed 18 vulnerabilities, including a 25-year-old bug, with issues spanning auth bypass, memory safety, and host validation in libcurl. Curl maintainers addressed eighteen vulnerabilities with a single update, and one of them goes back 25 years. That’s not a…
Inside Mistic, the New Stealth Backdoor in Ransomware Intrusions
Mistic is a stealthy backdoor used by KongTuke-linked actors to keep long-term access in ransomware-targeted networks. Mistic is the kind of backdoor that tells you the operator wants time, not noise. Symantec security researchers say it has shown up in…
Cisco Catalyst SD-WAN Zero-Day CVE-2026-20245 Exploited Months Before Disclosure
Hackers exploited Cisco Catalyst SD-WAN flaw CVE-2026-20245 as a zero-day months before disclosure, enabling privileged command execution. Google-owned Mandiant reported that an unknown threat actor exploited Cisco Catalyst SD-WAN vulnerability CVE-2026-20245 (CVSS base score of 7.8) as a zero-day at…
Nathan Austad Pleads Guilty in DraftKings Hacking Scheme, Gets 18 Months
Third DraftKings hacker gets 18 months in prison for a 2022 credential-stuffing attack that compromised 1,600 accounts and stole $600,000. Nathan Austad, the third person sentenced over the 2022 DraftKings credential-stuffing attack, received 18 months in prison. The group used…
Europol Disrupts StealC and Amadey Malware Infrastructure in Operation Endgame
Operation Endgame disrupted malware services like StealC and Amadey that enable ransomware, fraud, and attacks on critical infrastructure. Between June 15 and 19, 2026, Europol coordinated a two-week law enforcement operation involving agencies from Canada, Denmark, Germany, the Netherlands, the…
Cisco Unified CM Flaw CVE-2026-20230 Actively Exploited in the Wild
Attackers exploit Cisco Unified CM flaw (CVE-2026-20230) allowing unauth HTTP requests to trigger SSRF, write files, and gain root access Cisco Unified Communications Manager has a serious vulnerability, tracked as CVE-2026-20230 (CVSS score of 8.6), that attackers are already exploiting.…
Why Frontier AI makes prioritization the most important part of your CTEM program
Frontier AI could drive a 10x surge in vulnerabilities. CTEM helps organizations continuously identify, prioritize, and reduce real cyber risk. Your vulnerability management program was not designed for what is coming next. More than 40,000 CVEs were reported in 2025,…
FortiBleed: The Broker Who Turned 73,000 Firewalls Into a Product Catalog
FortiBleed exposed valid credentials for 73,000+ Fortinet firewalls, revealing a large-scale access-brokering operation targeting organizations worldwide. In mid-June 2026, researcher Volodymyr “Bob” Diachenko found a live, exposed server containing working login credentials for tens of thousands of Fortinet firewalls, a…
U.S. CISA adds Ubiquiti UniFi OS and Lantronix EDS5000 plugin flaws to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Ubiquiti UniFi OS and Lantronix EDS5000 flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Ubiquiti UniFi OS and Lantronix EDS5000 flaws to its Known Exploited…