BERLIN — A man on a long-distance train in southern Germany attacked and slightly injured four people with an axe Thursday before he was detained by police, authorities said.

Cryptosystems are essential for computer and communication security, e.g., RSA or ECDSA in PGP Email clients and AES in full disk encryption. In practice, the cryptographic keys are loaded and stored ...

An unusual gust of frigid air extending from Antarctica has blasted the small South American nation of Uruguay, leading to the deaths of at least seven homeless people this week and prompting ...

After the U.S. took military action against three nuclear sites in Iran, reaction across the political spectrum was swift with many Democrats decrying the president's "unilateral" strikes.