Voice over IP (VoIP) technologies have become integral to modern communication — both in daily life and enterprise infrastructure. However, with this growth comes an increasing surface for exploitation. From SIP hijacking and RTP tampering to robocall abuse and TDoS campaigns, the attack surface is both wide and under-protected.
Industry-Wide Risks and Underestimated Vulnerabilities
Studies by CFCA indicate telecom fraud losses have reached $28.2 billion globally, with VoIP-based exploits making up a significant share. TDoS and caller ID spoofing remain among the most critical risks. SecureLogix also highlights the growing use of social engineering in VoIP infrastructure attacks.
VoIP Protocols Were Never Designed for Security
SIP, RTP, and related protocols were designed for functionality, not security. Many VoIP deployments still lack proper encryption, authentication, or segmentation — especially in legacy enterprise environments where VoIP traffic traverses public and private networks without sufficient inspection.
Conventional Security Tools Fall Short
Most vulnerability scanners or SIEMs are blind to VoIP-specific behaviors. Tools that fail to understand SIP state machines or RTP media manipulation cannot evaluate whether an attacker could hijack calls or inject audio. Security professionals often rely on unsupported open-source scripts or manual traffic inspection.
The Skills Gap and the Need for Specialized Tools
Effective VoIP security assessment requires both telecom protocol expertise and offensive security proficiency — a rare combination. The shortage of talent, combined with the lack of VoIP-aware tooling, creates gaps in audit coverage across sectors.
Our Answer: Mr.SIP Pro
These gaps led to the creation of Mr.SIP Pro: a modular VoIP security testing toolkit designed for red teamers, consultants, and telecom security engineers. It supports dozens of real-world attack simulations — including spoofing, fuzzing, flooding, hijacking — and offers both GUI and CLI integration for structured workflows.
With built-in packet sniffing, SIP session analysis, media injection capabilities, and VulnHero CVE enrichment, Mr.SIP Pro goes beyond detection — enabling true exploit simulation and protocol manipulation.
Looking Ahead
We’re developing enhanced reporting, PDF export capabilities, customizable attack chaining, and VoIP-specific risk scoring models — so security teams can test smarter and prioritize faster.
If you are researching VoIP security or looking to build tooling in this domain, we would love to hear from you. Reach us at info@vulnhero.com.