: The downloaded .rar file usually contains an executable (like setup.exe ) that installs "stealer" malware such as Predator the Thief or Vidar .

Have you already a suspicious .rar file on your computer? Bitcoin Private Key Scanner Online: Is It Safe? - Ftp

: Disconnect from the internet immediately to prevent the malware from "calling home".

Promoted through YouTube videos and suspicious forums, these tools promise to generate private keys for addresses with high balances. In reality, they are sophisticated phishing and malware campaigns.

: Instead of scanning the blockchain, these programs scan your device for your actual wallet seed phrases, browser login credentials, and private keys.

Bitcoin security is based on a keyspace so vast it is often described as "universe-level". : There are 22562 to the 256th power