Ransomware has crippled governments and companies around the world, encrypting data and demanding payment for the decryption key – though that's no guarantee of recovering the information.
The latest malware is designed especially to make small companies pay through the nose for their data.
Medical practices have special requirements under the Privacy Act, but the security and privacy systems some providers currently have in place may be inadequate.
It turns out you can't ensure cyber-security in the world's fifth-largest employer if there's no one in charge of making it happen.
Like legitimate e-commerce, ransomware e-crime is increasing in scale, value and sophistication.
As cryptocurrency systems improve, they will better protect criminals' identities and even allow people to offer anonymous rewards for crimes they want committed.
The way we talk about cyberspace may make us more vulnerable to hacking.
Cybercriminals increasingly depend on e-currencies to profit from their misdeeds. They, and their potential victims, could be driving some of the growth in cryptocurrency markets.
The situation of Marcus Hutchins – hailed as a hero for stopping one malware attack but charged with being involved with another – highlights the ambiguity of hacker culture.
Mayhem, not money, seems to be the ultimate aim of the latest attack unleashed on computer networks around the world.
When companies neglect cybersecurity, customers – and society as a whole – suffer. It’s time customers demanded better of corporations.
Movies tell us that paying a ransom means the bad guys win, but in the real world it's not that simple.
Simply updating and patching an organisation's computer software may not be enough to fend off another cyber attack. You could engage an ethical hacker to help out.
What's the best way for spy agencies to protect the public: secretly exploit software flaws to gather intelligence, or warn the world and avert malicious cyberattacks?
The cyber-attack hit 200,000 computers and a number of big global organisations. But it hasn't made much in ransom money.
Things might not be over for the WannaCry malware.
Small businesses are the forgotten casualties of the recent WannaCry ransomware attack.
The underground market for software vulnerabilities has been growing steadily since the 1990s, so the latest WannaCry could be a sign of things to come.
People don't want to endure the interruptions and inconveniences of keeping their computer software up to date. Research tells us why, and how we might fix the problem – and protect ourselves.
"It is time for a digital Geneva Convention to protect the internet."