Popular personal note-taking app Evernote has been hacked, prompting the company to reset the passwords of more than 50 million users.

The company said suspicious activity was first detected on February 28.

In a security notice posted Saturday on the company's website, Evernote stated, in part:

"Evernote's Operations & Security team has discovered and blocked suspicious activity on the Evernote network that appears to have been a coordinated attempt to access secure areas of the Evernote Service...

In our security investigation, we have found no evidence that any of the content you store in Evernote was accessed, changed or lost. We also have no evidence that any payment information for Evernote Premium or Evernote Business customers was accessed."

Evernote provides cloud storage of personal notes. (Joe Ross/Flickr)

PCmag.com reported all users must reset their passwords in order to regain access to the service.

READ MORE: GM, AT&T Announce 4G LTE Cars

According to the company, the hackers gained access to user information, including usernames and e-mail addresses.

Naked Security said this information could be abused. For instance, the website reported, "the hackers could send out spam emails to those users claiming to come from Evernote, and trick them into visiting a malicious website."

According to Tech Crunch, Evernote is "the latest high-profile victim of wide-scale hacking attempts" and the security breach follows malicious activity at Twitter, Facebook and others in recent weeks."

This particular breach also spotlights the risk of of storing personal information on a cloud.

READ MORE: Sony Kick Starts The Next Gen

In an e-mail to Tech Crunch, Phil Libin, Evernote’s CEO and founder, said the website is functioning, although some services may run more slowly due to the high number of password resets.

“We just pushed out a password reset, so the servers are going to be saturated for a bit,” he wrote. “Everything is up, although response is choppy. There’s no threat to user data that we’re aware of.”

Internet security website Naked Security reported, "It's not clear how the hackers managed to gain access to Evernote's systems, or how long the hackers had access to Evernote's account information."

READ MORE: Apple, Adobe Facing Pressure To Explain Inflated Australian Prices

According to Tech Crunch, Evernote is "the latest high-profile victim of wide-scale hacking attempts" and the security breach follows malicious activity at Twitter, Facebook and others in recent weeks."

This particular breach also spotlights the risk of of storing personal information on a cloud.

The company provided these three tips to users to bolster account security:

• Avoid using simple passwords based on dictionary words
• Never use the same password on multiple sites or services
• Never click on 'reset password' requests in emails — instead go directly to the service

RELATED CONTENT:

Playstation 4 Revealed By Sony

Amazon Coins Aimed At Changing How Kindle Fire Users Spend Money

Dell Makes Deal To Go Private

Reach Executive Producer Vicki Chen here; follow her on Twitter here.