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Telecommunications Services of Trinidad & Tobago Limited (TSTT)

Telecommunications Services of Trinidad & Tobago Limited (TSTT) Vendor Cyber Rating & Cyber Score

tstt.co.tt

About TSTT: Telecommunications Services of Trinidad and Tobago Limited is jointly owned by National Enterprises Limited (NEL 51%) and Cable & Wireless (West Indies) Limited, (C&W – 49%). NEL is majority-owned by the Government of Trinidad and Tobago. Established in 1991, TSTT is the country's largest provider of communications solutions to the residential and commercial markets and its leading-edge products are designed around an IP-based core infrastructure and marketed under the “bmobile” brand. The company offers an innovative line of iOS and Android-based devices and provides broadband and mobile access using best-in-class 4G LTE and HSPA+ technology. Other solutions provided include IP-PBX; Metro Ethernet; Data Centre services and


TSTTL A.I CyberSecurity Scoring

TSTTL
Company Information
Website:http://www.tstt.co.tt
Employees number:2,088
Number of followers:24,329
NAICS:517
Industry Type:Telecommunications
Homepage:tstt.co.tt
TSTTL Risk Score (AI oriented)
Between 750 and 799
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TSTTLTelecommunications
Updated:
03/04/2026
758/1000
Fair
Baa
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TSTTL Global Score (TPRM)
xxxx
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TSTTLTelecommunications
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Findings

TSTTL
TSTTLFair
Current Score
758Baa (FAIR)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JULY 2026
758Before Incident
JUNE 2026
758Before Incident
MAY 2026
758Before Incident
APRIL 2026
758Before Incident
MARCH 2026
758Before Incident
FEBRUARY 2026
758Before Incident
JANUARY 2026
758Before Incident
DECEMBER 2025
758Before Incident
NOVEMBER 2025
758Before Incident
OCTOBER 2025
757Before Incident
SEPTEMBER 2025
757Before Incident
AUGUST 2025
757Before Incident
OCTOBER 2021
761Before Incident
Cyber Attack
30 Sep 2021TSTTL
TSTT (Telecommunication Services of Trinidad and Tobago)

TSTT Copper Network Migration and Theft-Related Disruptions

742After Incident
CRITICAL-19
TST5822658102825
TSTT is phasing out its legacy copper networks by September 2024 due to persistent copper theft and vandalism, a global issue exacerbated by rising copper prices. The theft targets critical infrastructure like electrical substations, cellular towers, landlines, and railroads, causing service disruptions, financial losses, and operational vulnerabilities. While TSTT has migrated over 100,000 subscriptions to fiber or fixed wireless, the prolonged reliance on copper exposed the company to cyber-physical risks, including potential sabotage or exploitation of outdated infrastructure by malicious actors. The delayed 'Zero Copper' initiative (originally slated for 2021) highlights systemic vulnerabilities, where physical breaches of copper lines could enable cyber intrusions (e.g., eavesdropping, data interception, or network compromise). Though the article focuses on theft, the underlying risk of cyber attacks leveraging unsecured copper-based systems—such as man-in-the-middle attacks or service hijacking—poses threats to national communication resilience, customer data integrity, and critical utility operations. The migration mitigates these risks but underscores past exposure to high-impact breaches or attacks during the transition period.
INCIDENT DETAILS -
TYPE
infrastructure vulnerabilityphysical security breachservice disruption
MOTIVATION
financial gainblack market sales
IMPACT
copper-based telecom lineslandline servicespotential broadband disruptionsintermittent service outages due to theftgradual phase-out of copper by September 2022delayed migration timelineresource allocation to anti-theft measurescustomer service disruptionsservice interruptionsdelays in fibre migrationperceived reliability issuespublic awareness of infrastructure vulnerabilities

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