Brazilian Hacker Charged for Extorting $3.2M in Bitcoin After Breaching 300,000 Accounts

There is no specific news on a Brazilian hacker Bitcoin extortion case involving 300,000 accounts breach in the provided sources. However, here are some relevant updates on recent cybercrime and hacking activities:

1. Black Basta Ransomware: The Black Basta ransomware gang has accumulated at least $107 million in Bitcoin ransom payments, with a notable attack on the City of Columbus in July 2024 affecting 500,000 people1.

2. Romanian Election Systems: Romania's election systems suffered over 85,000 cyberattacks, with leaked credentials posted on a Russian hacker forum before the presidential election1.

3. Atrium Health Data Breach: Atrium Health disclosed a data breach affecting 585,000 individuals, potentially linked to the use of online tracking tools1.

4. China-Linked APT Group: The China-linked APT group Salt Typhoon has breached telecommunications companies in dozens of countries, according to the U.S. government1.

5. U.S. Seizes Web Domain Names: The U.S. Justice Department seized more than 100 website domain names associated with the Callisto Group, a hacking group linked to Russian intelligence, which allegedly targeted U.S. government computer systems3.

6. Brazilian Authorities Arrest Hacker: Brazilian authorities have arrested an alleged hacker linked to the "USDoD" group, as reported by the CyberWire Daily podcast on December 25, 20242.

7. Recent Cyberattacks: There have been numerous other cyberattacks and data breaches reported, including phishing attacks using QR codes, ransomware attacks on industrial sectors, and significant vulnerabilities in software and hardware24.

These updates provide a comprehensive overview of recent cybercrime activities and hacking incidents but do not specifically mention a Brazilian hacker Bitcoin extortion case involving 300,000 accounts breach.