Cryptomining and cryptojacking have overtaken ransomware as the top threats to cybersecurity, according to Comodo Threat Labs. With cryptocurrencies’ market value exceeding $264bn in March, cybercriminals are focusing on stealing virtual currencies. Hospital IT and security teams can combat the threat by adopting basic cyberhygiene practices, such as being aware of unusual activity and using old-school methods to verify the legitimacy of emails. They should also understand their adversaries and think like attackers to better defend against cyberthreats.

“PupkinStealer” A New .NET-Based Malware Steals Browser Credentials & Exfiltrate via Telegram
PupkinStealer is a C# malware that steals sensitive data, including browser credentials and desktop files, using Telegram for stealthy data exfiltration. Discovered in April 2025,