Curious about the security of your documents in the cloud? You’re not alone. We recently received an email from Dana in Marietta, Ga., who is asking this, "I just read your article on saving documents ...

I'm looking to encrypt a file with OpenSSL functions (blowfish, des, rc4-- haven't picked one yet). Anyhow, after decrypting a file, I need to know if the file was correctly decrypted. The only way it ...

Protect your PC and storage drive from unauthorized access. Here’s how and why I enable BitLocker on all my Windows computers ...

If you want to encrypt your files in a click, here is how you can do that. EncryptOnClick is a freeware that you can use to password protect your files. No matter whether you want to encrypt image, ...

In short, ransomware uses an assortment of techniques to block access to the victim’s system or files, usually requiring payment of a ransom to regain access. Recently we have seen significantly ...

Signing and encryption have almost become a day to day task of some users. While encryption makes your file unreadable to unauthorized users, signing helps you in claiming and verifying the integrity ...

Locking down individual files is great, but a blanket encryption will prevent anyone from getting their paws on your files.

Now more than ever, it is important to protect your digital assets -- especially if you have a laptop. Whether your goal is to guard your financial data or keep nosy family members from viewing your ...

Computer scientists say they've developed a new encryption method designed to defend sensitive data from one of the biggest looming threats in cybersecurity: quantum computers powerful enough to crack ...

Last year, in between writing Take Control books and Macworld articles, I managed to squeeze in another little project – writing the 900-page “Mac Security Bible,” published in January 2010 by Wiley.

Victims of Simplocker, the first file-encrypting ransomware threat for Android devices, can recover files without paying cybercriminals because the malicious program uses a hardcoded encryption key.