Null subject phishing campaigns bypass filters and target VIPs with QR code and RMM abuse
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Substack data breach leaks users’ email addresses and phone numbers
Substack, a high-profile publishing platform widely used by academics, journalists, subject matter experts, and controversialists, has suffered a data breach affecting an unknown number of its creators and subscribers. According to emails sent out this week to some users, on February 3 the company “identified evidence” that a third party had exploited an unspecified weakness…