Comparison Overview

Київстар

VS

Millicom (Tigo)

Київстар

53, Degtyarivska St., Kyiv, Kyiv, UA, 03113
Last Update: 2025-11-25
Between 750 and 799

Київстар – найбільший український оператор електронних комунікацій, що станом на березень 2023 року обслуговував 24,3 млн абонентів мобільного зв’язку та понад 1,1 млн абонентів «Домашнього інтернету». Компанія надає послуги з використанням широкого спектра мобільних і фіксованих технологій, у тому числі 4G, Big Data, Cloud solutions, сервіси для кіберзахисту, цифрове ТБ та ін. Київстар допомагає абонентам, суспільству та країні долати складнощі воєнного часу. На липень 2023 року компанія надала гуманітарної допомоги країні, абонентам, ЗСУ на суму майже 1,1 млрд грн, а також інвестувала 6,7 млрд грн у відбудову та розвиток телеком мережі. Акціонер Київстар – міжнародна Група VEON. Акції Групи знаходяться на фондових біржах NASDAQ (Нью-Йорк) та Euronext (Амстердам). Київстар 25 років працює в Україні та визнаний найбільшим платником податків на телеком-ринку, кращим роботодавцем і соціально відповідальною компанією.

NAICS: 517
NAICS Definition: Telecommunications
Employees: 3,227
Subsidiaries: 6
12-month incidents
0
Known data breaches
0
Attack type number
1

Millicom (Tigo)

2 Rue du Fort Bourbon, Luxembourg, 1249, LU
Last Update: 2025-11-26
Between 750 and 799

Millicom (NASDAQ U.S.: TIGO, Nasdaq) is a leading provider of fixed and mobile telecommunications services in Latin America. Through our TIGO® and Tigo Business® brands, we provide a wide range of digital services and products, including TIGO Money for mobile financial services, TIGO Sports for local entertainment, TIGO ONEtv for pay TV, high-speed data, voice, and business-to-business solutions such as cloud and security. Millicom (NASDAQ U.S.: TIGO) is a leading provider of fixed and mobile telecommunications services in Latin America. Through our TIGO® and Tigo Business® brands, we provide a wide range of digital services and products, including TIGO Money for mobile financial services, TIGO Sports for local entertainment, TIGO ONEtv for pay TV, high-speed data, voice, and business-to-business solutions such as cloud and security. As of March 31, 2025, Millicom, including its Honduras Joint Venture, employed approximately 14,000 people, and provided mobile and fiber-cable services through its digital highways to more than 46 million customers, with a fiber-cable footprint over 14 million homes passed. Founded in 1990, Millicom International Cellular S.A. is headquartered in Luxembourg. Join us: www.millicom.com Twitter: @Millicom. Instagram: @millicom. Facebook: @millicom. YouTube: Millicom International. 148-150, Boulevard de la Pétrusse L-2330, Luxembourg

NAICS: 517
NAICS Definition: Telecommunications
Employees: 28,886
Subsidiaries: 7
12-month incidents
0
Known data breaches
0
Attack type number
0

Compliance Badges Comparison

Security & Compliance Standards Overview

https://images.rankiteo.com/companyimages/kyivstar.jpeg
Київстар
ISO 27001
ISO 27001 certification not verified
Not verified
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
GDPR
GDPR certification not verified
Not verified
PCI DSS
PCI DSS certification not verified
Not verified
HIPAA
HIPAA certification not verified
Not verified
https://images.rankiteo.com/companyimages/millicom-international-cellular-tigo.jpeg
Millicom (Tigo)
ISO 27001
ISO 27001 certification not verified
Not verified
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
GDPR
GDPR certification not verified
Not verified
PCI DSS
PCI DSS certification not verified
Not verified
HIPAA
HIPAA certification not verified
Not verified
Compliance Summary
Київстар
100%
Compliance Rate
0/4 Standards Verified
Millicom (Tigo)
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Telecommunications Industry Average (This Year)

No incidents recorded for Київстар in 2025.

Incidents vs Telecommunications Industry Average (This Year)

No incidents recorded for Millicom (Tigo) in 2025.

Incident History — Київстар (X = Date, Y = Severity)

Київстар cyber incidents detection timeline including parent company and subsidiaries

Incident History — Millicom (Tigo) (X = Date, Y = Severity)

Millicom (Tigo) cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/kyivstar.jpeg
Київстар
Incidents

Date Detected: 12/2023
Type:Cyber Attack
Blog: Blog
https://images.rankiteo.com/companyimages/millicom-international-cellular-tigo.jpeg
Millicom (Tigo)
Incidents

No Incident

FAQ

Millicom (Tigo) company demonstrates a stronger AI Cybersecurity Score compared to Київстар company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

Київстар company has historically faced a number of disclosed cyber incidents, whereas Millicom (Tigo) company has not reported any.

In the current year, Millicom (Tigo) company and Київстар company have not reported any cyber incidents.

Neither Millicom (Tigo) company nor Київстар company has reported experiencing a ransomware attack publicly.

Neither Millicom (Tigo) company nor Київстар company has reported experiencing a data breach publicly.

Київстар company has reported targeted cyberattacks, while Millicom (Tigo) company has not reported such incidents publicly.

Neither Київстар company nor Millicom (Tigo) company has reported experiencing or disclosing vulnerabilities publicly.

Neither Київстар nor Millicom (Tigo) holds any compliance certifications.

Neither company holds any compliance certifications.

Millicom (Tigo) company has more subsidiaries worldwide compared to Київстар company.

Millicom (Tigo) company employs more people globally than Київстар company, reflecting its scale as a Telecommunications.

Neither Київстар nor Millicom (Tigo) holds SOC 2 Type 1 certification.

Neither Київстар nor Millicom (Tigo) holds SOC 2 Type 2 certification.

Neither Київстар nor Millicom (Tigo) holds ISO 27001 certification.

Neither Київстар nor Millicom (Tigo) holds PCI DSS certification.

Neither Київстар nor Millicom (Tigo) holds HIPAA certification.

Neither Київстар nor Millicom (Tigo) holds GDPR certification.

Latest Global CVEs (Not Company-Specific)

Description

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to versions 19.2.16, 20.3.14, and 21.0.1, there is a XSRF token leakage via protocol-relative URLs in angular HTTP clients. The vulnerability is a Credential Leak by App Logic that leads to the unauthorized disclosure of the Cross-Site Request Forgery (XSRF) token to an attacker-controlled domain. Angular's HttpClient has a built-in XSRF protection mechanism that works by checking if a request URL starts with a protocol (http:// or https://) to determine if it is cross-origin. If the URL starts with protocol-relative URL (//), it is incorrectly treated as a same-origin request, and the XSRF token is automatically added to the X-XSRF-TOKEN header. This issue has been patched in versions 19.2.16, 20.3.14, and 21.0.1. A workaround for this issue involves avoiding using protocol-relative URLs (URLs starting with //) in HttpClient requests. All backend communication URLs should be hardcoded as relative paths (starting with a single /) or fully qualified, trusted absolute URLs.

Risk Information
cvss4
Base: 7.7
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Uncontrolled Recursion vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft deep ASN.1 structures that trigger unbounded recursive parsing. This leads to a Denial-of-Service (DoS) via stack exhaustion when parsing untrusted DER inputs. This issue has been patched in version 1.3.2.

Risk Information
cvss4
Base: 8.7
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Integer Overflow vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft ASN.1 structures containing OIDs with oversized arcs. These arcs may be decoded as smaller, trusted OIDs due to 32-bit bitwise truncation, enabling the bypass of downstream OID-based security decisions. This issue has been patched in version 1.3.2.

Risk Information
cvss4
Base: 6.3
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, working with large buffers in Lua scripts can lead to a stack overflow. Users of Lua rules and output scripts may be affected when working with large buffers. This includes a rule passing a large buffer to a Lua script. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves disabling Lua rules and output scripts, or making sure limits, such as stream.depth.reassembly and HTTP response body limits (response-body-limit), are set to less than half the stack size.

Risk Information
cvss3
Base: 7.5
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions from 8.0.0 to before 8.0.2, a NULL dereference can occur when the entropy keyword is used in conjunction with base64_data. This issue has been patched in version 8.0.2. A workaround involves disabling rules that use entropy in conjunction with base64_data.

Risk Information
cvss3
Base: 7.5
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H