Threat actors have been observed exploiting a critical pre-authentication command injection vulnerability in Citrix NetScaler ADC and NetScaler Gateway to drop web shells and attempt theft of configuration data. LevelBlue’s Threat Hunt Operations & Research (THOR) team, which analyzed the exploitation activity across multiple customer environments, said it identified malicious NetScaler
Internet-exposed tech, PLCs, outside integrators and inside protections are all factors the water sector’s information sharing and analysis center is watching. The post WaterISAC reckons with range of threats after summer of cyberattacks appeared first on CyberScoop.
Unknown threat actors have been observed exploiting a newly patched security flaw in Citrix NetScaler ADC and NetScaler Gateway appliances to target organizations in North America and Europe. The activity, observed by Mandiant Consulting and Google Threat Intelligence Group (GTIG) in September 2026, has targeted government, financial services, technology, education, and legal and professional
Given that the browser is where business apps are accessed and used, it makes sense that attacks are happening there too. Most breaches today begin in a browser session. Often, they never leave it, with the entire attack chain from initial access to exfiltration playing out in the browser. Here are the six most dangerous…
Threat actors are abusing ChatGPT Custom GPTs to disguise them as legitimate product offerings and direct unsuspecting victims to malicious sites that employ ClickFix lures to deliver malware. Huntress, which observed the activity in late September 2026, said it marks the abuse of yet another feature in trusted artificial intelligence (AI) platforms. Prior campaigns have…
Mandiant researchers said dozens of organizations have been impacted by attacks attributed to advanced and suspected state-sponsored threat groups. They expect more attacks to come. The post Attackers exploited Citrix NetScaler zero-day for at least three weeks undetected appeared first on CyberScoop.
ShinyHunters says it never intended to publish the sensitive personal data it claims to have stolen from the FBI, but the group also admits it cannot guarantee that a smaller sample already shared with journalists will stay private. The statement, sent to CBC News on Monday, September 29, 2026, marks the latest twist in a…
Microsoft’s Digital Crimes Unit shut down EvilTokens on September 22, 2026, ending a seven-month run that saw the AI-built phishing service compromise more than 12,000 Microsoft 365 inboxes across over 10,000 organizations worldwide. The takedown, backed by a federal court order out of the Eastern District of Virginia, seized 50 websites and disabled more than…
CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-86950 Apple Multiple Products Out-of-Bounds Write Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates…
This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. Coming soon: our 2026 list of Climate Tech Companies to Watch With the planet nearing 1.5 °C of warming, climate policies being unraveled, and Big Tech backpedaling on its climate ambitions,…