Encrypted files stored in the cloud are safe from hackers, given that what they stored are just binary blobs of scrambled data. Windows Bitlocker is a built-in full disk encryption software on all Professional or above editions of Windows since Windows Vista. The below data encryption solutions are the most common and known to be safe to use: AESCrypt, AxCrypt, File Vault, VeraCrypt, Windows BitLocker, and File & folder encryption tools are most common.”]
Source: https://hackercombat.com/top-5-encryption-software-to-securely-encrypt-your-files-in-the-cloud/