WhatsApp is secretly developing new privacy features that will revolutionize communication. But until WhatsApp rolls out a native option to hide your phone number from other users, you can use a few ...

Substack confirms October 2025 breach exposing user emails, phone numbers, and metadata CEO Chris Best assured no financial data or credentials were accessed; hole patched and investigation ongoing ...

Substack confirmed on February 4 that an unauthorized third party accessed user emails and phone numbers during a security breach that occurred in October 2025. The newsletter platform discovered the ...

Newsletter platform Substack has confirmed a data breach in an email to users. The company said that in October, an “unauthorized third party” accessed user data, including email addresses, phone ...

The company has emailed affected users after a dark web source claims the data of almost 700,000 users was compromised. Substack, a high-profile publishing platform widely used by academics, ...

Abstract: A two-stage rectifier with an adaptive power distribution network (APDN) to achieve high conversion efficiency over an extended input power range is proposed. The circuit consists of two ...