Colin Mc Hugo

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Colin Mc Hugo
Security Engineer Manager & CEO at Quantum Infinite Solutions Group Ltd.
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Cyber Security Incident Response
Management & Architecture of Cyber Security Teams
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TDoS attacks could cost lives, warns FBI

February 20, 2021

Each hacktivists and extortionists have used telephony denial-of-service assaults as a strategy to additional their targets

The US’ Federal Bureau of Investigation (FBI) has issued a stark warning about penalties that telephony denial-of-service (TDoS) assaults on name facilities may have on folks’s lives.

If launched in opposition to vital name facilities, TDoS assaults may finally forestall callers from reaching emergency providers equivalent to first responders in time and so pose a authentic menace to public security. “The ensuing enhance in time for emergency providers to reply might have dire penalties, together with lack of life,” reads the FBI’s public service announcement.

Because the identify suggests, the purpose of TDoS assaults is to overwhelm a phone system to such an extent that it might be unavailable for the meant customers. That is accomplished by maintaining a collection of distraction calls happening for so long as attainable, flooding the sufferer’s phone system, delaying authentic telephone calls and even making it inconceivable for them to make it by.

Whereas prior to now TDoS assaults had been carried out manually by encouraging folks on social networks to hitch in calling campaigns to inundate particular phone numbers, the perpetrators have now developed their modus operandi and use automated methods.

“An automatic TDoS assault makes use of software program functions to make tens or a whole bunch of calls, concurrently or in speedy succession, to incorporate Voice Over Web Protocol (VOIP) and Session Initiation Protocol (SIP). Numbers and name attributes could be simply spoofed, making it tough to distinguish authentic calls from malicious ones,” the Bureau defined.

Hacktivism, harassment and financial gain through extortion are among the many commonest motives for finishing up TDoS assaults. Whereas hacktivists might use pc community exploitation to additional their political and social causes, menace actors will resort to TDoS assaults as a approach of compacting municipalities for cash.

RELATED READING: 5 ways cybercriminals can try to extort you

Th FBI additionally set out an inventory of pointers on easy methods to put together for conditions when emergency numbers aren’t reachable:

  • You need to contact your native emergency providers for info on easy methods to attain them within the occasion of a 911 outage
  • Write down the non-emergency numbers in your native hearth, rescue and legislation enforcement businesses and have them prepared if an outage happens
  • If attainable, register for automated notifications in your area about emergency conditions taking place in your space
  • Observe numerous sources of data, together with web sites and social media, for emergency responders in your space

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