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[Intermediate] The Worst Data Breaches of 2021

Every six months, we compile a list of the worst data breaches that occurred during that period in order to learn from them. So far this year, the causes of the worst data breaches have shifted from human error and credential based attacks that we saw at the end of last year to ransomware, third-party vulnerabilities, and undetected security gaps.

[Intermediate] LinkedIn Breach Reportedly Exposes Data of 92% of Users, Including Inferred Salaries

A second massive LinkedIn breach reportedly exposes the data of 700M users, which is more than 92% of the total 756M users. The database is for sale on the dark web, with records including phone numbers, physical addresses, geolocation data, and inferred salaries.

[Simple] Lawsuit Filed Over Contact Tracing Data Breach

A federal lawsuit has been filed against Pennsylvania and a vendor contracted by the state's Department of Health (DOH) over a data breach that exposed the personal health information (PHI) of thousands of Pennsylvanians.

Psychotherapy centre's database hacked, patient info held ransom

Here inFinland, a private psychotherapy clinic was hacked, and the therapist notes for up to 40,000 patients were stolen. Now the attacker has emailed the victims, asking each for 200 € ransom in Bitcoin.