Deutsche Telekom GmbH Geschäftskunden logo

Deutsche Telekom GmbH Geschäftskunden

Deutsche Telekom provides telecommunications services including mobile phone networks, fixed-line internet and broadband, television services, and related digital products. The company operates network infrastructure and offers consumer and business telecommunications solutions across multiple markets. UpGuard continuously monitors the security posture of Deutsche Telekom GmbH Geschäftskunden using open-source, commercial, and proprietary threat intelligence feeds. Our analysis is centered on objective, externally verifiable information.

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Deutsche Telekom GmbH Geschäftskunden Security Rating

Deutsche Telekom GmbH Geschäftskunden's security rating is based on the analysis of their external attack surface. The higher the rating, the better their security posture. Start a free trial to get a more in-depth risk assessment for Deutsche Telekom GmbH Geschäftskunden.

Company info

Deutsche Telekom GmbH Geschäftskunden
Company Deutsche Telekom GmbH Geschäftskunden Employees 217k+ Location Bonn, NRW, Germany Last updated September 12, 2026

Last updated September 12, 2026

Deutsche Telekom GmbH Geschäftskunden Vendor Risk Report

This vendor risk report is based on UpGuard's continuous monitoring of Deutsche Telekom GmbH Geschäftskunden's security posture using open-source, commercial, and proprietary threat intelligence feeds. The results are summarized into a security rating based on the analysis of hundreds of individual checks across five risk categories: website security, email security, phishing & malware, brand & reputation risk, and network security.

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Website Security

Deutsche Telekom GmbH Geschäftskunden

X-Frame-Options is not deny or sameorigin

Browsers may display this website's content in frames. This can lead to clickjacking attacks.

CSP is not implemented

No valid Content Security Policy is implemented. This increases the risk of XSS and clickjacking attacks.

X-Content-Type-Options is not nosniff

Browsers may interpret files as a different MIME type than what is specified in the Content-Type HTTP header. This can lead to MIME confusion attacks.

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Website Security scan results table Cyber security rating score 850 out of 950

Email

Deutsche Telekom GmbH Geschäftskunden

DMARC policy is p=quarantine

The DMARC policy should be set to p=reject for maximum protection.

DMARC policy exists

DMARC protects against fraudulent emails being sent from a domain.

SPF syntax correct

Sender Policy Framework (SPF) record passes basic syntax checks.

DMARC policy percentage is default

DMARC policy percentage is set to default 100%, ensuring all mail is covered by the policy.

Strict SPF filtering - not using ~all

Sender Policy Framework (SPF) record strictly enforces specific domains allowed to send email on its behalf.

SPF ptr mechanism not used

Sender Policy Framework (SPF) record does not include the ptr mechanism.

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Network

Deutsche Telekom GmbH Geschäftskunden

No ports are open

No open ports were detected.

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DNS

Deutsche Telekom GmbH Geschäftskunden

DNSSEC not enabled

DNSSEC records prevent third parties from forging the records that guarantee a domain's identity. DNSSEC should be configured for this domain.

CAA not enabled

The domain does not contain a valid Certification Authority Authorization (CAA) record. A CAA record indicates which Certificate Authorities (CAs) are authorized to issue certificates for a domain.

No unregistered MX records detected

No unregistered MX records that could lead to receiving mail on behalf of the target organization were detected.

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Encryption

Deutsche Telekom GmbH Geschäftskunden

HTTP does not redirect to HTTPS

The domain is still accessible over HTTP. All HTTP requests should be redirected to HTTPS.

Certificate not found on our revoked certificate list

The site's certificate chain was checked against our list of revoked certificates.

SSL available

SSL is supported for this site.

Hostname matches SSL certificate

The site's hostname matches the SSL certificate.

SSL has not expired

SSL certificate has not expired.

Trusted SSL certificate

The certificate presented by this domain was issued by a trusted certificate authority.

No insecure SSL/TLS versions available

No insecure SSL/TLS versions are available for this site.

SSL certificate chain present in server response

A complete SSL certificate chain was presented by the server for this domain.

SSL chain certificates do not expire within 20 days

SSL intermediate and root certificates do not expire within 20 days.

SSL expiration period shorter than 398 days

The SSL certificate presented by the server has an expiration period shorter than 398 days.

SSL has more than 20% of its valid period remaining

SSL certificate does not expire in less than 20% of its total valid period.

Strong SSL algorithm

Industry standard SHA-256 encryption in use.

Domain is included on the HSTS preload list

Being included on the preload list gives the highest level of protection against MITM attacks for users of all major browsers.

Strong public certificate key length

The site's public certificate provides at least 112 bits of security strength.

No weak cipher suites supported in TLS 1.2

TLS connections to the site do not support any weak cipher suites.

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Data leakage

Deutsche Telekom GmbH Geschäftskunden

Infostealer malware detected

Infostealer malware has been detected on systems associated with this organization, indicating a potential data breach.

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IP/Domain Reputation

Deutsche Telekom GmbH Geschäftskunden

No reports of botnet activity in the last 30 days

This IP/domain has not been reported as a source of botnet activity in the last 30 days.

No reports of brute force login attempts in the last 30 days

This IP/domain did not appear on any list of IPs and domains known to perform brute force login attempts in the last 30 days.

No reports of malware distribution in the last 30 days

This IP/domain has been reported for distributing malware in the last 30 days.

No reports of unsolicited scanning in the last 30 days

This IP/domain has not been reported for performing unsolicited scanning in the last 30 days.

No reports of phishing activity in the last 30 days

This IP/domain has not been reported as a phishing site in the last 30 days.

No reports of botnet activity in the last 90 days

This IP/domain has not been reported as a source of botnet activity in the last 90 days.

No reports of brute force login attempts in the last 90 days

This IP/domain did not appear on any list of IPs and domains known to perform brute force login attempts in the last 90 days.

No reports of malware distribution in the last 90 days

This IP/domain has been reported for distributing malware in the last 90 days.

No reports of unsolicited scanning in the last 90 days

This IP/domain has not been reported for performing unsolicited scanning in the last 90 days.

No reports of phishing activity in the last 90 days

This IP/domain has not been reported as a phishing site in the last 90 days.

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Vulnerability Management

Deutsche Telekom GmbH Geschäftskunden

Not vulnerable to CVE-2014-0160 (Heartbleed)

A bug in OpenSSL's implementation of the TLS heartbeat extension allows access to portions of memory on the targeted host e.g. cryptographic keys and passwords.

Not vulnerable to CVE-2014-3566 (POODLE)

The server does not support SSLv3, and is not vulnerable to the POODLE attack.

Not vulnerable to CVE-2015-0204 (FREAK)

The server does not offer RSA_EXPORT cipher suites, so clients are not vulnerable to the FREAK attack.

Not vulnerable to CVE-2015-4000 (Logjam)

The server is using strong Diffie-Hellman parameters and is not vulnerable to the Logjam attack.

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Security reports related to Deutsche Telekom GmbH Geschäftskunden

Compare Deutsche Telekom GmbH Geschäftskunden's security performance with other companies in their industry.

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Cybersecurity & Risk Management Library

The ultimate guide to attack surface and third-party risk management – actionable advice for security teams, managers, and executives.

Free · for Deutsche Telekom GmbH Geschäftskunden customers & vendors

You're evaluating Deutsche Telekom GmbH Geschäftskunden's risk.Are attackers evaluating yours?

UpGuard runs 330+ external checks on Deutsche Telekom GmbH Geschäftskunden continuously. Get the same view of your own company — free, in 30 seconds.
Get my free score
Website Security scan results table Cyber security rating score 850 out of 950
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