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The developers behind the privacy-minded Zcash cryptocurrency have recently discovered and patched a highly dangerous vulnerability in the most secretive way that could have allowed an attacker to coin an infinite number of Zcash (ZEC). Yes, infinite… like a never-ending source of money. Launched in October 2016, Zcash is a privacy-oriented cryptocurrency that claims to be more anonymous than Bitcoin, as the sender, recipient, and value of transactions remain hidden. In a blog post published today, the Zerocoin Electric Coin Company—the startup behind Zcash—revealed that one of its employees, Ariel Gabizon, discovered the vulnerability in its code on 1st March 2018, the night prior to his talk at the Financial Cryptography conference almost a year ago. Gabizon contacted Sean Bowe, a Zcash Company's cryptographer, immediately after discovering the counterfeiting vulnerability, as dubbed by the team, and the team decided to keep the flaw secret in order to avoid the risk o...

Hackers who recently hacked into HBO network and stole scripts, shows, and employee information documents, have now provided an email in which the United States cable channel offered them $250,000 . The company offered the payment as a "bounty payment" reward in which companies reward white-hat hackers for discovering cyber security vulnerabilities in their computer networks. Late last month, the HBO hackers claimed to have obtained around 1.5 terabytes of information from HBO and dropped upcoming episodes of "Ballers" and "Room 104," and a script of the fourth episode of "Game of Thrones." A week after that, the hackers released another half-gigabyte sample of its stolen HBO data, including company's emails, employment agreements, and financial balance sheets, along with the script of the upcoming episode of Game of Thrones, demanding a ransom—nearly $6 Million in Bitcoins . Now, according to a screenshot of an email obtained b...

Smart hackers could exploit a loophole that could allow them to steal a significant amount of cash from Google, Microsoft and Instagram using a Premium rate phone number. Security researcher Arne Swinnen from Belgium has discovered an ingenious way to steal money from big tech companies like Google, Microsoft, and Instagram using their two-factor authentication (2FA) voice-based token distribution systems. Swinnen argues that any attacker with malicious intent could create fake Google, Microsoft or Instagram accounts, as well as premium phone services, and then link them together. The attacker could then request 2FA voice-based tokens for all fake accounts using an automated scripts, placing legitimate phone calls to his service to earn him quite a nice profit. Swinnen created accounts on Google, Microsoft Office 365 and Instagram and then tied them to a premium phone number instead of a regular one. As a result, whenever one of these three services would call the account...

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 -...