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Mayo Clinic

Mayo Clinic operates as a nonprofit medical center that provides clinical practice, medical research, and education services. The organization offers diagnosis and treatment across multiple specialties, including transplantation, oncology, cardiology, and neurology. UpGuard continuously monitors the security posture of Mayo Clinic using open-source, commercial, and proprietary threat intelligence feeds. Our analysis is centered on objective, externally verifiable information.

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Mayo Clinic Security Rating

Mayo Clinic'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 Mayo Clinic.

Company info

Mayo Clinic
Company Mayo Clinic Employees 76k+ Location Rochester, MN, United States Last updated July 16, 2026

Last updated July 16, 2026

Mayo Clinic Vendor Risk Report

This vendor risk report is based on UpGuard's continuous monitoring of Mayo Clinic'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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Email

Mayo Clinic

DMARC policy is p=none

DMARC policy is p=none. This provides no protection against fraudulent emails. The DMARC policy should be migrated to p=quarantine, and eventually p=reject.

DMARC policy exists

DMARC protects against fraudulent emails being sent from a domain.

SPF enabled

Sender Policy Framework (SPF) records prevent spammers from sending messages with forged addresses.

Strict SPF filtering - not using +all

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

SPF syntax correct

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

SPF ptr mechanism not used

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

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Network

Mayo Clinic

Port 7100 is open

Port 7100 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 8080 is open

Port 8080 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 8081 is open

Port 8081 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 8100 is open

Port 8100 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 8101 is open

Port 8101 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 8103 is open

Port 8103 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 8443 is open

Port 8443 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 9000 is open

Port 9000 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 9001 is open

Port 9001 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 9002 is open

Port 9002 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 9003 is open

Port 9003 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 9004 is open

Port 9004 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

Port 9008 is open

Port 9008 is open on this server, however no service was detected listening on this port. The configuration of the server should be reviewed and unnecessary ports closed.

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DNS

Mayo Clinic

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.

Domain has not expired

Domain has not expired.

Domain does not expire soon

Domain does not expire within 30 days.

Domain not flagged as inactive

Domain is not flagged as inactive.

Domain not pending deletion

Domain is not pending deletion with the registrar.

Domain not pending restoration

Domain is not pending restoration with the registrar.

Domain registrar or registry deletion protection enabled

Domain is protected from unsolicited deletion requests with the registrar or registry.

Domain registrar or registry transfer protection enabled

Domain is protected from unsolicited transfer requests.

Domain registrar or registry update protection enabled

Domain is protected from unsolicited update requests with the registrar or registry.

Domain free of registrar DNS resolution hold

Domain is not under a DNS resolution hold with the registrar.

Domain free of registry DNS resolution hold

Domain is not under a DNS resolution hold with the registry itself.

Domain renewal not prohibited by registry

Domain is not prohibited from renewal at the registry itself.

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Encryption

Mayo Clinic

HTTP Strict Transport Security (HSTS) not enforced

Without HSTS enforced, people browsing this site are more susceptible to man-in-the-middle attacks. The server should be configured to support HSTS.

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.

HTTP requests are redirected to HTTPS

All HTTP requests are redirected to HTTPS.

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.

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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IP/Domain Reputation

Mayo Clinic

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

Mayo Clinic

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 Mayo Clinic

Compare Mayo Clinic'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.

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