The Linux PolicyKit bug, $770 million lost in social media scams, and more - catch up on the infosec news of the week with the Friday Five!

The Justice Department announced this week that it arrested two involved with deploying ransomware and that it seized $6.1 million in ransom payments.

The new security audit self-assessment tool is designed to help organizations better understand how well they're equipped to defend and recover from ransomware.

A recent report looked at the average costs incurred by the healthcare sector following a ransomware attack.

A ransomware attack against one of San Diego's main healthcare systems has lasted for 12 days so far, resulting in lab test delays and forcing doctors and nurses to use pen and paper.

A ransomware attack late last week took down a major U.S. pipeline but the company says its making incremental progress bringing things back online.

In a recent FBI note the agency outlined how DoppelPaymer ransomware attacks have impacted critical infrastructure - and the lengths the attackers have gone to get paid.

Not only is the average ransom payment going up, so are cases in which the attackers threaten to release a company's stolen data.

The full scope of the incident isn't yet known but as a result, facilities across the U.S. have been left without access to computer systems.

The cybercriminals are reportedly winding down operations around the ransomware after claiming to have made $2 billion in ransom payments

Take a look at the history of ransomware, the most damaging ransomware attacks, and the future for this threat.

As the wave of data breaches continues to crash down on companies, let’s take a look back at some of the largest and most damaging data breaches on record. Read on for a historical walk through breaches over time as well as resources for preventing data breaches.

A hospital paid 4 BTC (Bitcoin) - roughly $55,000 - to regain access to its computer systems over the weekend.

Homeland Security Advisor Thomas Bossert pinned WannaCry on North Korea in a Wall Street Journal op-ed Monday night.

A previously unknown strain of ransomware, Bad Rabbit, hit roughly 200 targets across Russia, Ukraine, and Bulgaria, on Tuesday.

A South Carolina school district is the latest to do the ransomware two step: assuring parents that data encrypted and held hostage by the criminals wasn’t “accessed” by them. Nice try.

The NotPetya fallout continues, with global transport and logistics conglomerate Maersk reporting up to $300 million in losses following a June cyber attack.

FedEx briefly halted trading of its shares on Wednesday after reports that its TNT subsidiary was hit by NotPetya/ExPetr, a destructive wiper malware. Get ready for more.

The WannaCrypt ransomware was nothing special. Companies were done in by nasty software exploits and endemic insecurity in the form of unpatched and unpatchable legacy systems.

We’ve released a free content pack for all Digital Guardian customers to help protect against the WannaCry ransomware.