Updated Researchers at Avast have been secretly distributing decryptors to victims of DoNex ransomware since March after discovering a flaw in the criminals’ cryptography, the company confirmed today. They have also published the decryptor for anyone to use, now that the group no longer appears to pose a serious threat to the cybersecurity sector after … Read more
When massive stars die, as we understand the universe, it does not happen quietly. When their fuel runs out, they become unstable and are wracked by explosions before ultimately ending their lives in a spectacular supernova. But some massive stars, scientists have discovered, have simply disappeared, leaving no trace in the night sky. Stars that … Read more
In recent years, astronomers have been investigating an unusual phenomenon: stars seemingly disappearing, leaving few clues as to why they disappeared from our view. In 2019, the Vanishing and Appearing Sources during a Century of Observations (VASCO) project attempted to catalog how many stars have disappeared from view over the past 70 years and found … Read more