[Bithumb] Introduction to Case Studies on Damage Prevention Using Bithumb AI-based Security Cooperation System

Hello.

NO.1 Virtual Asset Platform, Bithumb.

Recently, as interest in virtual assets has increased, phishing sites attempting to steal customers' personal information are rapidly emerging.

Bithumb has constructed an AI-based security cooperation system to detect/block phishing sites and analyze them to identify victim information and respond selectively.

While we strive to prevent damage as much as possible, unexpected damage may occur, so we ask customers to be individually cautious.

For detailed information, please refer below.

■ Case Studies on Damage Prevention

• Through the Bithumb AI-based security cooperation system, phishing sites are blocked within 48 hours, and victim customer information is selectively verified within 72 hours to complete customer notification.

① 11/15 (Fri)

: 24-hour integrated control team detected phishing sites through advertisements on search engine (bing), accessed https://bithumb.coinbuy.com.br/bithumb/ to steal login information and verify malicious code distribution status

② 11/16 (Sat)

: Hacker created phishing sites and advertised on search engine (bing) to reach the top

③ 11/17 (Sun)

: Phishing site blocking control and notification announcement

④ 11/18 (Mon)

: Through the Bithumb AI-based security cooperation system, retrospectively confirmed the scale of damage and verified hundreds of victims, notified ID/password change for affected customers, and blocked suspicious withdrawals, preventing approximately 5 billion won worth of asset damage

We will always strive to be a security room that does our best to protect customers' assets.

■ Please be cautious of phishing sites like the ones below.

• Microsoft Bing search results

• Phishing site entry homepage address

For other related damage reports or inquiries, please contact the Bithumb Customer Center (1661-5566) immediately.

Bithumb will continue to develop and secure systems to protect users' rights and prevent user damage.

Thank you.

*Automatically generated information.