Security Affairs

OCTOBER 19, 2024

Attackers accessed targets via VPN gateways lacking multifactor authentication, some of which ran outdated software. In each of the cases, attackers initially accessed targets using compromised VPN gateways without multifactor authentication enabled. Some of these VPNs were running unsupported software versions.”

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Backups VPN Ransomware Authentication 129

Security Affairs

MAY 8, 2024

TunnelVision is a new VPN bypass technique that enables threat actors to spy on users’ traffic bypassing the VPN encapsulation. Leviathan Security researchers recently identified a novel attack technique, dubbed TunnelVision, to bypass VPN encapsulation. The researchers referred to this result as “decloaking.”

VPN 133

VPN Firewall Marketing Encryption 133

Security Affairs

MAY 29, 2024

Check Point released hotfixes for a VPN zero-day vulnerability, tracked as CVE-2024-24919, which is actively exploited in attacks in the wild. Check Point released hotfixes to address a VPN zero-day vulnerability, tracked as CVE-2024-24919 , which is actively being exploited in attacks in the wild.

VPN 124

VPN Passwords Authentication Accountability 124

Krebs on Security

AUGUST 19, 2020

But one increasingly brazen group of crooks is taking your standard phishing attack to the next level, marketing a voice phishing service that uses a combination of one-on-one phone calls and custom phishing sites to steal VPN credentials from employees. The employee phishing page bofaticket[.]com. Image: urlscan.io. ” SPEAR VISHING.

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Phishing VPN Social Engineering Media 363

Bleeping Computer

JUNE 11, 2023

Fortinet has released new Fortigate firmware updates that fix an undisclosed, critical pre-authentication remote code execution vulnerability in SSL VPN devices. [.]

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VPN Firmware Authentication 145

Security Affairs

AUGUST 31, 2023

Cisco is aware of attacks conducted by Akira ransomware threat actors targeting Cisco ASA VPNs that are not configured for multi-factor authentication. “This highlights the importance of enabling multi-factor authentication (MFA) in VPN implementations. . ” reads a post published by Cisco PSIRT.

Authentication 136

Authentication Ransomware VPN Hacking 136

Security Affairs

APRIL 16, 2024

Cisco Talos warns of large-scale brute-force attacks against a variety of targets, including VPN services, web application authentication interfaces and SSH services.

VPN 139

VPN Firewall Authentication Hacking 139

Security Affairs

SEPTEMBER 6, 2023

Experts warn of an Atlas VPN zero-day flaw impacting the Linux client that can reveal the user’s IP address by visiting a website. A Reddit user with the handle ‘Educational-Map-8145’ published a proof of concept exploit for a zero-day flaw in the Linux client of Atlas VPN. It does not have ANY authentication.

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VPN Education Authentication Engineering 136

Krebs on Security

NOVEMBER 21, 2024

The targeted SMS scams asked employees to click a link and log in at a website that mimicked their employer’s Okta authentication page. Some SMS phishing messages told employees their VPN credentials were expiring and needed to be changed; other phishing messages advised employees about changes to their upcoming work schedule.

Identity Theft 250

Identity Theft Phishing Cryptocurrency Accountability 250

Duo's Security Blog

JANUARY 11, 2024

Secure Cisco VPN logins in less than an hour Authenticate users in seconds Verify user + device posture Blog unmanaged devices Mitigate modern security threats with phishing-resistant authentication Join the thousands of Cisco firewall customers who take advantage of protecting Cisco VPN logins with Cisco Duo Single Sign-On via SAML 2.0

VPN 124

VPN Authentication Firewall Risk 124

Schneier on Security

JANUARY 15, 2021

Monthly: The user pays their bill to the MVNO (credit card or otherwise) and the phone gets anonymous authentication (using Chaum blind signatures) tokens for each time slice (e.g., If it’s valid, the MVNO tells the MNO that the user is authenticated, and the user receives a temporary random ID and an IP address.

Surveillance 354

Surveillance Mobile Authentication VPN 354

SecureWorld News

MAY 28, 2024

Threat actors are targeting Check Point Remote Access VPN devices in an ongoing campaign to breach enterprise networks, the company has warned in a new advisory. We have recently witnessed compromised VPN solutions, including various cyber security vendors.

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VPN Passwords Authentication Architecture 109

Krebs on Security

NOVEMBER 21, 2020

The phishers often will explain that they’re calling from the employer’s IT department to help troubleshoot issues with the company’s email or virtual private networking (VPN) technology. Restrict VPN access hours, where applicable, to mitigate access outside of allowed times.

Cryptocurrency 363

Cryptocurrency VPN Scams Social Engineering 363

Security Affairs

OCTOBER 25, 2024

is a Denial of Service (DoS) issue that impacts the Remote Access VPN (RAVPN) service of ASA and FTD. An attacker could exploit this vulnerability by sending a large number of VPN authentication requests to an affected device. Services that are not related to VPN are not affected.” continues the advisory.

VPN 112

VPN Firewall Technology Passwords 112

Duo's Security Blog

JUNE 8, 2023

Some of it is positive, but the general consensus is that people don’t love multi-factor authentication (MFA); they see it as a necessary evil at best. That’s why I’m so excited to announce our vision to streamline Duo’s authentication workflows, a feature that will deliver seamless, secure login experiences.

Authentication 144

Authentication VPN System Administration Engineering 144

Duo's Security Blog

APRIL 3, 2025

While the enforcement of multi-factor authentication (MFA) makes logging in more secure, it inevitably runs the risk of adding steps to a process users already find annoying. While this may avoid authentication fatigue, it certainly risks and may even violate some security standards.

Authentication 52

Authentication Passwords Risk VPN 52

The Hacker News

APRIL 17, 2024

Cisco is warning about a global surge in brute-force attacks targeting various devices, including Virtual Private Network (VPN) services, web application authentication interfaces, and SSH services, since at least March 18, 2024.

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VPN Authentication 138

Security Affairs

JANUARY 16, 2024

Experts warn that recently disclosed Ivanti Connect Secure VPN and Policy Secure vulnerabilities are massively exploited in the wild. is an Authentication Bypass issue that resides in the web component of Ivanti ICS 9.x, The flaw CVE-2023-46805 (CVSS score 8.2) x and Ivanti Policy Secure. x) and Ivanti Policy Secure.

VPN 127

VPN Authentication Small Business Telecommunications 127

Security Affairs

JUNE 16, 2024

Taiwanese manufacturer giant ASUS addressed a critical remote authentication bypass vulnerability impacting several router models. ASUS addresses a critical remote authentication bypass vulnerability, tracked as CVE-2024-3080 (CVSS v3.1 score: 9.8), impacting seven router models. impacting multiple devices.

Authentication 129

Authentication Firmware VPN Manufacturing 129

Security Affairs

FEBRUARY 1, 2024

Mandiant spotted new malware used by a China-linked threat actor UNC5221 targeting Ivanti Connect Secure VPN and Policy Secure devices. Mandiant researchers discovered new malware employed by a China-linked APT group known as UNC5221 and other threat groups targeting Ivanti Connect Secure VPN and Policy Secure devices.

VPN 134

VPN Malware Authentication Hacking 134

eSecurity Planet

AUGUST 27, 2024

A virtual private network (VPN) does more than just mask your identity—it fundamentally changes how your data moves across the internet. But what’s really going on under the hood when you browse the web using a VPN? Step 3: Data Transmission to the VPN Server The encrypted data is then transmitted to the VPN server.

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VPN Encryption Internet Internet 103

Security Affairs

NOVEMBER 25, 2024

According to the advisory, the attack is only possible if the device is configured to use User-Based-PSK authentication and has a valid user with a username longer than 28 characters. for ATP, USG FLEX, and USG FLEX 50(W)/USG20(W)-VPN series. . for ATP, USG FLEX, and USG FLEX 50(W)/USG20(W)-VPN series.

Firewall 73

Firewall Ransomware VPN Firmware 73

Tech Republic Security

MAY 13, 2020

With the shift toward remote working, cybercriminals have been targeting exploits in VPN, Internet of Things, and authentication technology, says cybersecurity firm Nuspire.

VPN 185

VPN Malware Authentication Internet 185

Security Affairs

JANUARY 31, 2024

Threat actors are exploiting recently disclosed zero-day flaws in Ivanti Connect Secure (ICS) VPN devices to deliver KrustyLoader. is an Authentication Bypass issue that resides in the web component of Ivanti ICS 9.x, The flaw CVE-2023-46805 (CVSS score 8.2) x and Ivanti Policy Secure. x) and Ivanti Policy Secure.

VPN 126

VPN Malware Authentication Small Business 126

Duo's Security Blog

OCTOBER 30, 2024

Let's talk about how Duo SSO is revolutionizing FortiGate VPN access. Picture this: You're securing VPN logins in under an hour, authenticating users in seconds and saying goodbye to those pesky stolen credential risks. Connect your FortiGate VPN to Duo SSO using SAML 2.0 (it's Sounds too good to be true?

VPN 88

VPN Authentication Firewall Risk 88

Penetration Testing

FEBRUARY 9, 2024

Recently, a critical flaw, nestled within the SSL-VPN feature of SonicWall’s SonicOS, has been brought to light, exposing a gap wide enough for remote attackers to slip through unnoticed.

Authentication 96

Authentication Penetration Testing VPN 96

Duo's Security Blog

MAY 23, 2024

When reading the title of this blog, you might be wondering to yourself why RADIUS is being highlighted as a subject — especially amidst all of the advancements of modern authentication we see taking place recently. It is commonly used for network access into VPNs, wireless access points, and other devices (more on this later).

Authentication 111

Authentication Wireless Passwords Encryption 111

IT Security Guru

OCTOBER 26, 2023

Enter Two-Factor Authentication, or 2FA for short. Always use VPN for your safety to protect your data from prying eyes. If 2FA is the bouncer, consider a VPN your personal invisibility cloak, making you nearly untouchable in the digital realm. Authentication Apps: Consider this the artisanal gelato of the 2FA world.

Authentication 132

Authentication Passwords Mobile VPN 132

Security Affairs

FEBRUARY 18, 2025

The two vulnerabilities are: CVE-2025-0108 Palo Alto PAN-OS Authentication Bypass Vulnerability CVE-2024-53704 SonicWall SonicOS SSLVPN Improper Authentication Vulnerability Researchers recently warned that threat actors exploit a recently disclosed vulnerability, CVE-2025-0108, in Palo Alto Networks PAN-OS firewalls.

Firewall 63

Firewall Firmware Authentication VPN 63

Security Affairs

MARCH 10, 2025

The attackers breached the organization via compromised credentials for a VPN portal that lacked multi-factor authentication (MFA). The threat actors conducted post-exploitation activities eighteen days after initial access.

Ransomware 117

Ransomware VPN Healthcare Malware 117

Duo's Security Blog

AUGUST 6, 2024

Join the thousands of Palo Alto firewall customers who take advantage of protecting Palo Alto VPN logins with Duo Single Sign-On via SAML 2.0 Duo SSO simplifies the authentication process for users by providing a single point of access to multiple applications. to help prevent unwanted access and streamline the user experience.

VPN 85

VPN Artificial Intelligence Authentication Firewall 85

Security Affairs

FEBRUARY 1, 2024

The government experts also ordered to monitor the authentication or identity management services that could be exposed and urged to isolate the systems from any enterprise resources to the greatest degree possible. is an Authentication Bypass issue that resides in the web component of Ivanti ICS 9.x, x and Ivanti Policy Secure.

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VPN Authentication Software Malware 129

The Hacker News

JANUARY 12, 2024

As many as five different malware families were deployed by suspected nation-state actors as part of post-exploitation activities leveraging two zero-day vulnerabilities in Ivanti Connect Secure (ICS) VPN appliances since early December 2023.

VPN 103

VPN Malware Authentication 103

Krebs on Security

JUNE 15, 2023

The directive applies to any networking devices — such as firewalls, routers and load balancers — that allow remote authentication or administration. The researchers found that just being able to reach the management interface for a vulnerable Fortinet SSL VPN appliance was enough to completely compromise the devices.

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Risk VPN Internet Internet 263

The Last Watchdog

JUNE 22, 2022

VPNs encrypt data streams and protect endpoints from unauthorized access, essentially by requiring all network communications to flow over a secured pipe. However, VPN pipes have become less efficient with the rising use of personally-owed mobile devices increasing reliance on cloud-centric IT resources.

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VPN Cloud Migration Firewall Encryption 213

Security Affairs

OCTOBER 29, 2024

Change passwords : After malware removal, update passwords for key accounts (email, banking, work, social media) and enable two-factor authentication. Consider extra security layers : Use additional protection like a VPN for safer online activity. Use a password manager : Simplifies managing strong, unique passwords across accounts.

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Identity Theft Passwords Malware Banking 124

Security Boulevard

APRIL 17, 2025

They were strategic, persistent, and laser-focused on exploiting firewall and VPN weak points to establish long-term control over sensitive systems. Firewalls and VPNs are no longer the line of defense. But as networks have grown more complex and workforces have gone hybrid, VPNs have become both overextended and overexposed.

Firewall 64

Firewall VPN Encryption Architecture 64