Attackers can attempt to hide malicious payloads in Excel files sent by e-mail by using a standard Excel feature, according to a Tuesday post by Mimecast researchers.

R10Cipher supports drag and drop multiple file encryption, and decryption by double clicking a file to recreate it with its original filename. R10Cipher takes text or files and encrypts them. These ...

To decrypt the file, on open, Excel will attempt to use an embedded, default password, " VelvetSweatshop," which was implemented years ago by Microsoft programmers.

Excel encryption has strengthened over time, so newer versions should be sufficient to keep your files safe, said Rick Maybury ...