LinkedIn: No Reports of Unauthorized Account Access in Wake of Hack
The company also revealed that passwords of the service's users are now salted as well as hashed. "That transition was completed prior to news of the password theft breaking on Wednesday," Silveira wrote.
Ty Miller, chief technology officer of penetration testing firm Pure hacking, said that although the salting of password hashes has been around for a long time, "we find that many Web applications either do not hash their passwords at all, or use common hashing algorithms, such as MD5, without a salt".
"Social and professional networking sites such as LinkedIn are major targets for hackers," Miller said. "Combining this with the complexity of these types of web applications, the chance of a critical vulnerability being present is likely. This means that a defence-in-depth approach should be a necessity for LinkedIn, which includes protecting passwords with strong cryptographic methods."