Wednesday , June 6 2018

Lastpass posts security advisory; hack detected but security not compromised

LastPass
Lastpass has today notified users that its team discovered and blocked suspicious activity on its network on Friday last week. In their investigation, they have found no evidence that encrypted user vault data was taken, nor that LastPass user accounts were accessed. The investigation has shown, however, that LastPass account email addresses, password reminders, server per user salts, and authentication hashes were compromised.

What does this mean for users? Not too much to worry about really. Lastpass said:

We are confident that our encryption measures are sufficient to protect the vast majority of users. LastPass strengthens the authentication hash with a random salt and 100,000 rounds of server-side PBKDF2-SHA256, in addition to the rounds performed client-side. This additional strengthening makes it difficult to attack the stolen hashes with any significant speed.

Nonetheless, we are taking additional measures to ensure that your data remains secure. We are requiring that all users who are logging in from a new device or IP address first verify their account by email, unless you have multifactor authentication enabled. As an added precaution, we will also be prompting users to update their master password.

If you use an encrypted password manager such as Lastpass the most important security aspect is a secure master password. Without this, and factoring in their strong cryptographic security, your data is likely to remain fairly safe despite attempts such as this.

Chris Rowland   Editor and Publisher

Chris has been at the forefront of smartphone reporting in Australia since smartphones were a thing, and has used mobile phones since they came with giant lead-acid batteries that were "transportable" and were carried in a shoulder bag. He saw the transition from AMPS to GSM, loved the Motorola StarTac, and got into Palm technologies in a big way. The arrival some years later of the original iPhone, and then the early Androids, awoke a new interest in mobile technology, and Chris has been writing about it since.

Today, Chris publishes one of Australia's most popular technology websites, Ausdroid. His interests include mobile (of course), as well as connected technology and how it can make all our lives easier.

2 comments

  1. Also, affected users should turn on two-factor authentication, that way even if the hackers manage to decrypt your password, they still need an authentication code to log into your Lastpass account.

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