DeepSeek hit by cyberattack, limits new registrations

• Existing users could log in as normal, DeepSeek wrote in an incident report Monday.

Zoom in: "Due to large-scale malicious attacks on DeepSeek's services, we are temporarily limiting registrations to ensure continued service."

• The startup did not specify what form the limitations would take or how long they would last.
• Deepseek's web sign-up page sported an alert banner that said that "registration may be busy" due to the attacks.

The big picture: Interest in DeepSeek's rapid advancements in AI sent U.S. tech stocks tumbling on Monday, as DeepSeek's mobile app ranked number one in Apple's rankings of free iPhone apps.

• DeepSeek released its V3 model last month, which rivaled competitors from OpenAI and Anthropic with allegedly much less money, chips, and energy.

Go deeper:

• China's AI keeps getting better — and cheaper
• DeepSeek resets the board
• The anatomy of a bubble bursting