SMS bombing attacks involve sending a large volume of SMS messages to a target phone number in a short period, often with malicious intent. Here are some examples:
Harassment or Vexatious Attacks: An attacker repeatedly sends spam messages to flood a victim's inbox, making it difficult to receive legitimate communications. For example, a disgruntled user might use automated tools to send hundreds of SMS messages containing abusive language or random characters.
Account Lockout or Service Disruption: Some services use SMS-based two-factor authentication (2FA). An attacker may launch an SMS bomb to exhaust the victim's message inbox, preventing them from receiving legitimate 2FA codes and locking them out of their accounts.
Resource Exhaustion for Businesses: A business receiving an SMS bomb may face operational disruptions, as employees cannot access critical alerts or communications. For instance, a company relying on SMS notifications for system alerts might miss important warnings if its lines are flooded.
To mitigate such attacks, businesses can use Tencent Cloud's SMS Protection Services, which include rate limiting, IP filtering, and AI-based anomaly detection to block suspicious traffic. Additionally, Tencent Cloud's Anti-DDoS solutions can help safeguard communication channels from abuse.