Cyber attackers are no longer just targeting apps or systems – they're now attacking the core of mobile networks.

Protocols like SS7 (2G/3G) and Diameter (4G/5G), which handle calls and SMS, were built on trust – not security. Hackers are exploiting this weakness to:

• Intercept SMS (including OTPs)

• Hijack calls

• Track user location

• Bypass 2FA

Once attackers gain access to telecom networks, they send fake but trusted requests, making these attacks very hard to detect.

Impact:

• Account takeovers

• Financial fraud

• Privacy breaches

Defense Tips (SOC Perspective):

• Monitor unusual OTP activity

• Detect abnormal location changes

• Correlate login + telecom events

• Avoid SMS-based authentication (use. authenticator apps instead)

Even strong security can fail if the underlying infrastructure is weak.

#CyberSecurity #SOC #ThreatDetection #SS7 #Diameter #InfoSe