AK Steel Holding was an American steel producer that manufactured flat-rolled carbon, stainless, and electrical steel products for the automotive, infrastructure, and manufacturing industries. The company operated integrated steel mills and finishing facilities across multiple states before being acquired by Cleveland-Cliffs in 2020. UpGuard continuously monitors the security posture of AK Steel using open-source, commercial, and proprietary threat intelligence feeds. Our analysis is centered on objective, externally verifiable information.
AK Steel'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 AK Steel.
Last updated May 15, 2026
This vendor risk report is based on UpGuard's continuous monitoring of AK Steel'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.
DMARC reject policy provides the most effective protection against fraudulent emails being sent from a domain.
DMARC protects against fraudulent emails being sent from a domain.
Sender Policy Framework (SPF) record passes basic syntax checks.
DMARC policy percentage is set to default 100%, ensuring all mail is covered by the policy.
Sender Policy Framework (SPF) record strictly enforces specific domains allowed to send email on its behalf.
Sender Policy Framework (SPF) record does not include the ptr mechanism.
Domain is not protected from unsolicited deletion requests with the registrar or registry. The domain should have clientDeleteProhibited or serverDeleteProhibited set.
Domain is not protected from unsolicited update requests with the registrar or registry. The domain should have clientUpdateProhibited or serverUpdateProhibited set.
No unregistered MX records that could lead to receiving mail on behalf of the target organization were detected.
Domain has not expired.
Domain does not expire within 30 days.
DNSSEC records prevent third parties from forging the records that guarantee a domain's identity.
Domain is not flagged as inactive.
Domain is not pending deletion with the registrar.
Domain is not pending restoration with the registrar.
Domain is protected from unsolicited transfer requests.
Domain is not under a DNS resolution hold with the registrar.
Domain is not under a DNS resolution hold with the registry itself.
Domain is not prohibited from renewal at the registry itself.
This IP/domain has not been reported as a source of botnet activity 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.
This IP/domain has been reported for distributing malware in the last 30 days.
This IP/domain has not been reported for performing unsolicited scanning in the last 30 days.
This IP/domain has not been reported as a phishing site in the last 30 days.
This IP/domain has not been reported as a source of botnet activity 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.
This IP/domain has been reported for distributing malware in the last 90 days.
This IP/domain has not been reported for performing unsolicited scanning in the last 90 days.
This IP/domain has not been reported as a phishing site in the last 90 days.
Compare AK Steel's security performance with other companies in their industry.
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