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Cybersecurity researchers today revealed the existence of a new and previously undetected critical vulnerability in SIM cards that could allow remote attackers to compromise targeted mobile phones and spy on victims just by sending an SMS. Dubbed " SimJacker ," the vulnerability resides in a particular piece of software, called the S@T Browser (a dynamic SIM toolkit), embedded on most SIM cards that is widely being used by mobile operators in at least 30 countries and can be exploited regardless of which handsets victims are using. What's worrisome? A specific private company that works with governments is actively exploiting the SimJacker vulnerability from at least the last two years to conduct targeted surveillance on mobile phone users across several countries. S@T Browser , short for SIMalliance Toolbox Browser, is an application that comes installed on a variety of SIM cards, including eSIM, as part of SIM Tool Kit (STK) and has been designed to let mobile...

Estonian based web security startup WebARX, the company who is also behind open-source plugin vulnerability scanner WPBullet and soon-to-be-released bug bounty platform plugbounty.com , has a big vision for a safer web. It built a defensive core for websites which is embedded deep inside the company's DNA as even ARX in their name refers to the citadel (the core fortified area of a town or city) in Latin. WebARX—web application security platform—allows web developers and digital agencies to get advanced website security integrated with every site and makes it more effective and less time-consuming to manage security across multiple websites. You can find reviews such as "WebARX - the Swiss army knife that secures my websites!", "The security software that I use every day," "Many Promise - WebARX Delivers" from their Trustpilot page, so where is all that coming from? Serious Team With A Unique Focus WebARX is solving a very specific probl...

Hello Ladies, let's talk about periods, privacy, and Facebook. Are you using an app on your smartphone to keep tracks on your periods? Well, it's worrying, because it might be sharing your extremely sensitive information like menstrual cycle and sexual activities with Facebook. A new investigative report from UK-based advocacy group Privacy International revealed how some most popular period tracker apps used by millions of women share their most private health information—including monthly period cycles, contraception use, sexual life, symptoms, like swelling and cramps, and more—directly with Facebook. These period-tracking apps, listed below, transfer your data to Facebook the moment you open them, regardless of the fact that you have a Facebook account or not, and whether you are logged into the social network platform or not. Period-tracking apps are used by women to keep tracks on their monthly period cycles, but mostly they are being used by those who want t...

I had the honor of hosting the first episode of the Xposure Podcast live from Xposure Summit 2025. And I couldn't have asked for a better kickoff panel: three cybersecurity leaders who don't just talk security, they live it. Let me introduce them. Alex Delay , CISO at IDB Bank, knows what it means to defend a highly regulated environment. Ben Mead , Director of Cybersecurity at Avidity Biosciences, brings a forward-thinking security perspective that reflects the innovation behind Avidity's targeted RNA therapeutics. Last but not least, Michael Francess , Director of Cybersecurity Advanced Threat at Wyndham Hotels and Resorts, leads the charge in protecting the franchise. Each brought a unique vantage point to a common challenge: applying Continuous Threat Exposure Management (CTEM) to complex production environments. Gartner made waves in 2023 with a bold prediction: organizations that prioritize CTEM will be three times less likely to be breached by 2026. But here's the kicker -...

Unlike previous side-channel vulnerabilities disclosed in Intel CPUs, researchers have discovered a new flaw that can be exploited remotely over the network without requiring an attacker to have physical access or any malware installed on a targeted computer. Dubbed NetCAT , short for Network Cache ATtack, the new network-based side-channel vulnerability could allow a remote attacker to sniff out sensitive data, such as someone's SSH password, from Intel's CPU cache. Discovered by a team of security researchers from the Vrije University in Amsterdam, the vulnerability, tracked as CVE-2019-11184, resides in a performance optimization feature called Intel's DDIO—short for Data-Direct I/O—which by design grants network devices and other peripherals access to the CPU cache. The DDIO comes enabled by default on all Intel server-grade processors since 2012, including Intel Xeon E5, E7 and SP families. According to the researchers [ paper ], NetCAT attack works simila...

CISOs and CIOs need to know better than anyone the security pulse of their organizations. On the other hand, they cannot be flooded with every changing detail. Finding the right balance that enables them to clearly grasp the big picture required in making sound decisions is a task many security executives find challenging. Threat actors do not acknowledge off-hours or weekends, introducing the need for constant vigilance. Moreover, CIOs and CISOs are heavily dependent on their team for knowledge and often lack the immediate interaction with the events in real-time. This situation is also far from favorable – after all, who if not the security executive should have the ability to be in-the-know and initiate action at the heart of things? Cynet rises to this challenge with the recently launched Cynet Dashboard application, which provides 24/7 insight into the overall security posture, real-time visibility into newly detected threats, and the ability to take rapid action if the nee...

Immediately after Mozilla announced its plan to soon enable ' DNS over HTTPS ' (DoH) by default for Firefox users in the United States, Google today says it is planning an experiment with the privacy-focused technology in its upcoming Chrome 78. Under development since 2017, ' DNS over HTTPS ' performs DNS lookups—finding the server IP address of a certain domain name—over an encrypted HTTPS connection to a DNS server, rather than sending DNS queries in plaintext. The protocol that sends DNS queries over secure HTTPS connections has specifically been designed to prevent miscreants from interfering with domain name lookups, eventually stopping network observers, including your ISPs and attackers, from figuring out what sites you visit. Though the privacy-focused technology is also helpful in preventing attackers from redirecting unsuspecting visitors to phishing and malware sites, DNS over HTTPS could also bring its own new challenges to the enterprise security so...

Mozilla has officially launched a new privacy-focused VPN service, called Firefox Private Network , as a browser extension that aims to encrypt your online activity and limit what websites and advertisers know about you. Firefox Private Network service is currently in beta and available only to desktop users in the United States as part of Mozilla's recently expunged "Firefox Test Pilot" program that lets users try out new experimental features before they were officially released. The Firefox Test Pilot program was first launched by the company three years ago but was shut down in January this year. The company now decided to bring the program back but with some changes. "The difference with the newly relaunched Test Pilot program is that these products and services may be outside the Firefox browser, and will be far more polished, and just one step shy of general public release," said Marissa Wood, vice president of product at Mozilla. Firefox...