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Researchers at KU Leuven tested 85 of the most popular crypto wallets that run as browser extensions and found that the wallets themselves leak enough to link and track the people using them. The way these wallets talk to websites and blockchain servers can tie a person's separate addresses together and let outsiders follow them from site to site. And on a site that already holds a name or email, the same leaks can put a real name to an "anonymous" crypto identity. This is not a hack. The wallets behave exactly as they were built to. The 85 extensions together have about 35 million users listed on the Chrome Web Store. The team, from the university's DistriNet security group,  posted the paper  this month and will present it at the PETS 2026 privacy conference in Calgary in late July. They ran real wallets against real Web3 sites and mapped out five privacy weaknesses in how wallets and websites interact. When they reported the most far-reaching one to the wa...

Give an AI assistant a memory and access to your inbox, and you hand an attacker a way to rewrite what it thinks it knows about you. A single email can trick that agent into saving a false "fact" about the user, hide the change, and quietly steer its answers in later sessions. When it works, the person reads an ordinary-looking reply and never learns their assistant was tampered with. The researchers named the attack  stealth memory injection  and built a tool that writes the emails automatically. The paper, "When Claws Remember but Do Not Tell,"  landed on arXiv on 6 July 2026 . First, what these assistants do A personal agent is an AI assistant that sticks around. Instead of forgetting everything when a chat ends, it keeps notes about you in files: your preferences, your contacts, and what you asked it to do. It reads those notes at the start of every new session, which is why it feels like it knows you. Many of these agents can also act for you, readin...

A heart defibrillator remotely controlled by a villainous hacker to trigger a fatal heart attack? Yes now its possible, The Government Accountability Office has released a report warning that medical devices are vulnerable to hacking and calling for greater FDA oversight of such devices. The investigation into electronic medical-device safety was initiated after computer-security researchers found dangerous vulnerabilities in insulin pumps. The FDA in 2009 issued guidance urging hospitals and medical device manufacturers to work together to eliminate security risks. But in September, the Government Accountability Office issued a report warning that implantable medical devices could be vulnerable to hacking, posing a safety threat, and asked the FDA to address the issue. “ Even the human body is vulnerable to attack from computer hackers ,” Representative Anna Eshoo, a Democrat from California, said in a statement on her website . Preventing potential hacking it might s...