Utilizing mobile operating system features or third-party applications that automatically filter out messages containing keywords like "verification code" or "OTP" from unknown senders.
Cybersecurity researchers at Cyble Research and Intelligence Labs (CRIL) found that approximately , and about 58% employ user-agent randomization as evasion techniques.
In the quiet, neon-lit corners of a cramped apartment in Tehran,
The evolution of SMS bombing tools over recent years reflects a broader trend in cybercrime: . According to CRIL‘s 2025–2026 analysis, the SMS/OTP bombing ecosystem has moved beyond simple terminal scripts to include:
Reza sat in a small apartment in Tehran, the blue light of his monitor reflecting off his glasses. Outside, the city hummed with life, but in his digital world, he was focused on a single GitHub repository. He had noticed how local businesses used automated SMS for everything from two-factor authentication to marketing. With a few lines of Python, he realized he could trigger those systems simultaneously, creating a "bomber" that could overwhelm a phone with hundreds of messages in seconds. The Code Goes Viral
Under international legal frameworks, SMS bombing may violate:
The story of "SMS bombers" in Iran, particularly those found on GitHub, is a tale of digital pranksterism and harassment tools developed by local programmers. These scripts leverage the way Iranian web services handle phone verification to flood targets with unwanted messages. The Mechanics of the "Bomber"
The burden of stopping SMS bombers lies heavily on the companies whose APIs are being exploited. To protect their financial resources and prevent their brand from being associated with spam, businesses should implement:
3. How Iranian SMS Bombers Work: Exploiting the OTP Ecosystem
Most Iranian SMS bombers on GitHub are optimized for Termux, an Android terminal emulator. This allows non-technical users to run sophisticated cyber-harassment scripts directly from their smartphones without needing a computer or rooting their device.