Encrypted portable hard drives are designed to protect your sensitive data against unauthorized access. The security level of an encrypted portable hard drive depends on the encryption algorithm and the strength of the password used. There are various encryption algorithms available, such as AES (Advanced Encryption Standard) and Blowfish, which provide strong encryption for your data.
However, it’s important to remember that no encryption is completely foolproof, and it’s possible for a skilled attacker to eventually break through the encryption. Therefore, it’s important to choose a strong and unique password and to keep it secure. It’s also a good idea to store your encrypted portable hard drive in a safe location and to avoid leaving it unattended in public places.