How secure are my files after encrypting them?

east-tec InvisibleSecrets uses government-level 256-bit AES On-the-fly encryption (also known as Rijndael) to encrypt and protect your data. This is one of the most secure encryption algorithms. Secret files are highly secure. It also uses word leader industry standards such as the 256-bit Blowfish encryption algorithm which is a highly secure method to protect your sensitive files.