Tag: authentication
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MCP is fueling agentic AI, and introducing new security risks
Tags: access, ai, api, attack, authentication, best-practice, ceo, cloud, corporate, cybersecurity, gartner, injection, LLM, malicious, monitoring, network, office, open-source, penetration-testing, RedTeam, risk, service, supply-chain, technology, threat, tool, vulnerabilityMitigating MCP server risks: When it comes to using MCP servers there’s a big difference between developers using it for personal productivity and enterprises putting them into production use cases.Derek Ashmore, application transformation principal at Asperitas Consulting, suggests that corporate customers don’t rush on MCP adoption until the technology is safer and more of the…
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Exploit details released for Citrix Bleed 2 flaw affecting NetScaler
Tags: access, advisory, authentication, backdoor, backup, citrix, credentials, cve, data-breach, endpoint, exploit, flaw, leak, mitigation, password, theft, tool, vulnerability, zero-daySimilarities to the original Citrix Bleed: CVE-2025-5777 has been dubbed Citrix Bleed 2 due to its similarities to a zero-day information disclosure vulnerability fixed in October 2023 (CVE-2023-4966) that received the Citrix Bleed moniker because it enabled attackers to leak session tokens from memory, allowing for session takeover with multifactor authentication bypass.Similarly, CVE-2025-5777 can lead…
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July Patch Tuesday: 14 critical Microsoft vulnerabilities, one SAP hole rated at 10 in severity
Tags: access, attack, authentication, business, citrix, computer, control, credentials, cve, cvss, data, email, espionage, exploit, grc, microsoft, monitoring, network, ransomware, remote-code-execution, risk, sap, service, threat, update, vulnerability, windowsNetwork security: Allow PKU2U authentication requests to this computer to use online identities“.Tyler Reguly, Fortra’s associate director of security R&D, told CSO that, based on Microsoft’s presentation of the information, disabling this GPO will mitigate this vulnerability.The second priority is a fix for CVE-2025-49704, a SharePoint Remote Code Execution vulnerability, because it presents a critical risk to a…
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July Patch Tuesday: 14 critical Microsoft vulnerabilities, one SAP hole rated at 10 in severity
Tags: access, attack, authentication, business, citrix, computer, control, credentials, cve, cvss, data, email, espionage, exploit, grc, microsoft, monitoring, network, ransomware, remote-code-execution, risk, sap, service, threat, update, vulnerability, windowsNetwork security: Allow PKU2U authentication requests to this computer to use online identities“.Tyler Reguly, Fortra’s associate director of security R&D, told CSO that, based on Microsoft’s presentation of the information, disabling this GPO will mitigate this vulnerability.The second priority is a fix for CVE-2025-49704, a SharePoint Remote Code Execution vulnerability, because it presents a critical risk to a…
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Phishing-resistente MFA-Verfahren – Das ist die Zukunft der Multifaktor-Authentifizierung
First seen on security-insider.de Jump to article: www.security-insider.de/sicherheitwebauthn-multifaktor-authentifizierung-phishing-schutz-a-440566987fe3bb801a421434e4dba52d/
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Qwizzserial Android Malware Masquerades as Legit Apps to Steal Banking Data and Intercept 2FA SMS
A new and alarming Android malware family, dubbed Qwizzserial, has emerged as a significant threat, particularly targeting users in Uzbekistan. Discovered by Group-IB in March 2024, this SMS stealer is designed to intercept two-factor authentication (2FA) codes and steal sensitive banking information, posing a severe risk to personal and financial security. Disguised as legitimate applications…
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Citrix Alerts on Authentication Failures After NetScaler Update to Resolve Auth Vulnerability
Citrix has issued an urgent advisory for NetScaler users following the release of builds 14.1.47.46 and 13.1.59.19, warning of potential authentication disruptions stemming from a 16c3 a newly implemented security feature. As part of Citrix’s secure-by-design and secure-by-default initiative, the Content Security Policy (CSP) header has been enabled by default in these builds to bolster…
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GitPhish: Open-source GitHub device code flow security assessment tool
GitPhish is an open-source security research tool built to replicate GitHub’s device code authentication flow. It features three core operating modes: an authentication … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2025/07/03/gitphish-open-source-github-device-code-flow-security-assessment-tool/
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Citrix warns of login issues after NetScaler auth bypass patch
Citrix warns that patching recently disclosed vulnerabilities that can be exploited to bypass authentication and launch denial-of-service attacks may also break login pages on NetScaler ADC and Gateway appliances. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/citrix-warns-of-login-issues-after-netscaler-auth-bypass-patch/
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Ghost in the Machine: A Spy’s Digital Lifeline
Tags: access, ai, attack, authentication, best-practice, cloud, communications, control, country, crypto, cyber, data, encryption, endpoint, framework, government, Hardware, identity, infrastructure, intelligence, jobs, law, linux, mfa, military, network, resilience, risk, software, spy, strategy, technology, threat, tool, vpn, windows, zero-trust -
Microsoft Removes Password Management from Authenticator App Starting August 2025
Microsoft has said that it’s ending support for passwords in its Authenticator app starting August 1, 2025.The changes, the company said, are part of its efforts to streamline autofill in the two-factor authentication (2FA) app.”Starting July 2025, the autofill feature in Authenticator will stop working, and from August 2025, passwords will no longer be accessible…
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Singapore bans NRIC use for authentication
Tags: authenticationFirst seen on scworld.com Jump to article: www.scworld.com/brief/singapore-bans-nric-use-for-authentication
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More Support for Complex Authentication Flows: TOTP MFA and Text-Based CAPTCHA
Escape’s new support for TOTP MFA and text-based CAPTCHA enables fully automated DAST on protected apps, reducing scan failures First seen on securityboulevard.com Jump to article: securityboulevard.com/2025/06/more-support-for-complex-authentication-flows-totp-mfa-and-text-based-captcha/
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What is OTP Authentication? A Simple Guide
Introduction Let’s be honest, passwords are kind of a pain. We’re told to create long, complicated ones with numbers,… First seen on securityboulevard.com Jump to article: securityboulevard.com/2025/06/what-is-otp-authentication-a-simple-guide/
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Patch now: Citrix Bleed 2 vulnerability actively exploited in the wild
Indications of real-world exploitation: ReliaQuest researchers said that, in multiple incidents, attackers were seen hijacking active Citrix web sessions and bypassing multi-factor authentication (MFA) without requiring user credentials. The research also highlighted “session reuse across multiple IPs, including combinations of expected and suspicious IPs.”In compromised environments, attackers proceeded with post-authentication reconnaissance, issuing lightweight directory access…
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Gefährliche Lücke in Brother-Druckern
Tags: access, authentication, bug, ceo, cve, cvss, cybersecurity, data-breach, firmware, jobs, network, service, update, vulnerability, wifiEine Schwachstelle in Brother-Druckern zur Umgehung der Authentifizierung kann mit einer anderen Lücke gekoppelt werden, um Code auf den betroffenen Geräten remote auszuführen.Brother Industries hat mit einer kritischen Sicherheitslücke zu kämpfen, die Hunderte verschiedener Druckermodelle betrifft. Diese Schwachstelle ermöglicht in Verbindung mit einer weiteren Lücke die Ausführung von nicht authentifiziertem Remote-Code (RCE) auf den Geräten.Das…
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Over 1,200 Citrix servers unpatched against critical auth bypass flaw
Over 1,200 Citrix NetScaler ADC and NetScaler Gateway appliances exposed online are unpatched against a critical vulnerability believed to be actively exploited, allowing threat actors to bypass authentication by hijacking user sessions. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/over-1-200-citrix-servers-unpatched-against-critical-auth-bypass-flaw/
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Gefährliche Lücke in Brother Druckern
Tags: access, authentication, bug, ceo, cve, cvss, cybersecurity, data-breach, firmware, jobs, network, service, update, vulnerability, wifiEine Schwachstelle in Brother Druckern zur Umgehung der Authentifizierung kann mit einer anderen Lücke gekoppelt werden, um Remotecode auf den betroffenen Geräten auszuführen.Brother Industries hat mit einer kritischen Sicherheitslücke zu kämpfen, die Hunderte verschiedener Druckermodelle betrifft. Diese Schwachstelle ermöglicht in Verbindung mit einer weiteren Lücke die Ausführung von nicht authentifiziertem Remote-Code (RCE) auf den Geräten.Das…
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Hackers Exploit Bluetooth Flaws to Eavesdrop via Headphones and Earbuds
In a major security revelation, researchers have uncovered critical vulnerabilities in millions of Bluetooth headphones and earbuds, enabling hackers to eavesdrop on conversations, hijack devices, and access sensitive data”, all without user authentication or pairing. The flaws, discovered by German security firm ERNW and presented at the TROOPERS security conference, affect Bluetooth chips produced by…
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DMARC MSP Case Study: How S-IT Automated Email Authentication Management with PowerDMARC
Learn how Managed Security Service Provide S-IT partnered with PowerDMARC to automate and simplify email authentication management for clients. First seen on securityboulevard.com Jump to article: securityboulevard.com/2025/06/dmarc-msp-case-study-how-s-it-automated-email-authentication-management-with-powerdmarc-2/
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CVE-2025-5777, CVE-2025-6543: Frequently Asked Questions About CitrixBleed 2 and Citrix NetScaler Exploitation
Frequently asked questions about recent Citrix NetScaler ADC and Gateway vulnerabilities that have reportedly been exploited in the wild, including CVE-2025-5777 known as CitrixBleed 2. Background Tenable’s Research Special Operations (RSO) team has compiled this blog to answer Frequently Asked Questions (FAQ) regarding CVE-2025-5777 and CVE-2025-6543, two Citrix NetScaler ADC and Gateway vulnerabilities that have…
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Cybersecurity Snapshot: U.S. Gov’t Urges Adoption of Memory-Safe Languages and Warns About Iran Cyber Threat
Tags: access, advisory, ai, api, attack, authentication, best-practice, cisa, computer, computing, crypto, cryptography, cyber, cybersecurity, data, defense, encryption, exploit, finance, framework, google, governance, government, group, hacker, healthcare, infrastructure, injection, intelligence, Internet, iran, login, mfa, military, mitigation, mitre, network, nist, passkey, password, programming, ransomware, risk, rust, service, software, strategy, tactics, technology, terrorism, threat, tool, training, vulnerability, warfareCheck out the U.S. government’s latest call for developers to use memory-safe programming languages, as well as its warning for cybersecurity teams regarding cyber risk from hackers tied to Iran. Plus, get the latest on ransomware trends, the quantum computing cyber threat and more! Dive into five things that are top of mind for the…
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Navigating a Heightened Cyber Threat Landscape: Military Conflict Increases Attack Risks
Tags: advisory, ai, attack, authentication, breach, business, cloud, container, control, cyber, cyberattack, cybersecurity, data, data-breach, defense, detection, exploit, finance, firmware, group, hacker, hacking, Hardware, identity, infrastructure, intelligence, Internet, iran, mfa, military, network, password, risk, russia, service, strategy, tactics, technology, terrorism, threat, tool, update, vulnerability, vulnerability-managementThe current geopolitical climate demands a proactive, comprehensive approach to cybersecurity. Here’s what you need to know, and how Tenable can help. The cybersecurity landscape is in constant flux, but rarely do we see such a rapid escalation of threats as we are currently experiencing. The U.S. Department of Homeland Security’s (DHS) National Terrorism Advisory…
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Frequently Asked Questions About Iranian Cyber Operations
Tags: access, advisory, api, apt, attack, authentication, awareness, cisa, cloud, credentials, cve, cyber, cybersecurity, data, data-breach, defense, dos, exploit, finance, framework, government, group, Hardware, identity, infrastructure, injection, Internet, iran, ivanti, malware, mfa, microsoft, middle-east, military, mitre, monitoring, network, password, ransomware, rce, remote-code-execution, risk, service, software, supply-chain, tactics, technology, terrorism, threat, tool, update, vpn, vulnerability, windowsTenable’s Research Special Operations team focuses on some frequently asked questions about Iranian cyber operations, including the tactics, techniques and procedures employed by Iran-based threat actors. Background Tenable’s Research Special Operations (RSO) team has compiled this blog to answer Frequently Asked Questions (FAQ) regarding Iranian cyber operations in the wake of the recent conflict and…
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Microsoft-Lücke ermöglicht E-Mail-Versand ohne Authentifizierung
Tags: access, authentication, ciso, cyberattack, data, defense, dkim, dmarc, exploit, framework, hacker, infrastructure, mail, microsoft, phishing, powershell, qr, risk, tool, usa, vulnerability, zero-dayDrucker und Scanner werden dank einer Schwachstelle in der Microsoft 365 Direct Send-Funktion zunehmend zu Mitteln für Hacker, um Phishing-Angriffe durchzuführen.Das Forensik-Team von Varonis hat eine Schwachstelle entdeckt, die es internen Geräten wie Druckern ermöglicht, E-Mails ohne Authentifizierung zu versenden. Dem Bericht zufolgewurde die Lücke bereits genutzt, um mehr als 70 Unternehmen, vorwiegend in den…
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Mitsubishi Electric AC Flaw Lets Hackers Remotely Control Systems
A critical security vulnerability has been discovered in multiple Mitsubishi Electric air conditioning systems, potentially allowing hackers to bypass authentication and remotely control affected units. The flaw, identified as CVE-2025-3699, was disclosed by Mitsubishi Electric on June 26, 2025, and has been assigned a maximum CVSS base score of 9.8, indicating its severity. Authentication Bypass…