Downloading and using OpenBullet 1.4.5 is not illegal per se. However:

Security researchers should:

According to the European Union Agency for Cybersecurity (ENISA), credential stuffing attacks increased by over 300% in 2023, largely due to tools like OpenBullet. Defenders must understand the tool to build effective countermeasures.


Built-in support for 2Captcha, Anti-Captcha, CapMonster, and manual captcha input was streamlined in 1.4.5, reducing configuration headaches.

OpenBullet 145 introduced better support for SOCKS4, SOCKS5, and HTTP/HTTPS proxies, including automatic proxy rotation, banning of non-working proxies, and concurrent proxy testing.

Version 1.4.5 (often called “145” in forums and Telegram groups) is widely considered a milestone release. Here’s why:

Unlike later versions, 1.4.5 does not phone home, giving privacy-focused users peace of mind.

OpenBullet 145 includes pre-built blocks for bypassing Cloudflare Challenge, DDoS-GUARD, and basic bot detection (though modern sites require more sophisticated methods).

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