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How we estimate the risk from prompt injection attacks on AI systems

Actualités
Posted by the Agentic AI Security Team Modern AI systems, like Gemini, are more capable than ever, helping retrieve data and perform actions on behalf of users. However, data from external sources present new security challenges if untrusted sources are available to execute instructions on AI systems. Attackers can take advantage of this by hiding malicious instructions in data that are likely to be retrieved by the AI system, to manipulate its behavior. This type of attack is commonly referred to as an "indirect prompt injection," a term first coined by Kai Greshake and the NVIDIA team. To mitigate the risk posed by this class of attacks, we are actively deploying defenses within our AI systems along with measurement and monitoring tools. One of these tools is a robust evaluation…
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Zyxel CPE Devices Face Active Exploitation Due to Unpatched CVE-2024-40891 Vulnerability

Actualités
Cybersecurity researchers are warning that a critical zero-day vulnerability impacting Zyxel CPE Series devices is seeing active exploitation attempts in the wild. "Attackers can leverage this vulnerability to execute arbitrary commands on affected devices, leading to complete system compromise, data exfiltration, or network infiltration," GreyNoise researcher Glenn Thorpe said in an alert
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Broadcom Warns of High-Severity SQL Injection Flaw in VMware Avi Load Balancer

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Broadcom has alerted of a high-severity security flaw in VMware Avi Load Balancer that could be weaponized by malicious actors to gain entrenched database access. The vulnerability, tracked as CVE-2025-22217 (CVSS score: 8.6), has been described as an unauthenticated blind SQL injection. "A malicious user with network access may be able to use specially crafted SQL queries to gain database
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UAC-0063 Expands Cyber Attacks to European Embassies Using Stolen Documents

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The advanced persistent threat (APT) group known as UAC-0063 has been observed leveraging legitimate documents obtained by infiltrating one victim to attack another target with the goal of delivering a known malware dubbed HATVIBE. "This research focuses on completing the picture of UAC-0063's operations, particularly documenting their expansion beyond their initial focus on Central Asia,
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PureCrypter Deploys Agent Tesla and New TorNet Backdoor in Ongoing Cyberattacks

Actualités
A financially motivated threat actor has been linked to an ongoing phishing email campaign that has been ongoing since at least July 2024 specifically targeting users in Poland and Germany. The attacks have led to the deployment of various payloads, such as Agent Tesla, Snake Keylogger, and a previously undocumented backdoor dubbed TorNet that's delivered by means of PureCrypter. TorNet is so
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OAuth Redirect Flaw in Airline Travel Integration Exposes Millions to Account Hijacking

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Cybersecurity researchers have disclosed details of a now-patched account takeover vulnerability affecting a popular online travel service for hotel and car rentals. "By exploiting this flaw, attackers can gain unauthorized access to any user’s account within the system, effectively allowing them to impersonate the victim and perform an array of actions on their behalf – including
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A Tumultuous Week for Federal Cybersecurity Efforts (Krebs on Security)

Sécurité
Image: Shutterstock. Greg Meland. President Trump last week issued a flurry of executive orders that upended a number of government initiatives focused on improving the nation’s cybersecurity posture. The president fired all advisors from the Department of Homeland Security’s Cyber Safety Review Board, called for the creation of a strategic cryptocurrency reserve, and voided a Biden administration action that sought to reduce the risks that artificial intelligence poses to consumers, workers and national security. On his first full day back in the White House, Trump dismissed all 15 advisory committee members of the Cyber Safety Review Board (CSRB), a nonpartisan government entity established in February 2022 with a mandate to investigate the causes of major cybersecurity events. The CSRB has so far produced three detailed reports, including an analysis of…
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