Claude login emails expose "invisible location" feature, raising user privacy concerns about IP address-based location deduction.

According to Mars Finance, on July 1st, Beating's monitoring revealed that Anthropic's AI assistant Claude has recently sparked user discussion due to location hints in its login verification emails. Some users noticed that Claude includes a general login location, such as country, region, or city, when sending login verification codes or security alerts. This detail has brought renewed attention to how AI service providers identify the source of user access. Such locations are usually not precisely GPS-based, but rather inferred from IP addresses, network connections, and device information. When using VPNs, proxy servers, corporate networks, or mobile carrier networks, the location shown in the email may differ from the user's actual location. Anthropic's privacy policy states that the company collects IP addresses, device information, connection information, and locations inferred from IP addresses for security, fraud prevention, and enforcement of the terms of service. Claude users are particularly sensitive to this, partly because the service is not yet available in all regions, and cross-border use, overseas accounts, and third-party intermediary services are more common in the Chinese community. Recently, there have also been reports in the Chinese user community of accounts being suspended or requiring re-verification, which some users have dubbed a "ban wave."