cache-owa-autodiscover-refreshv4[.]vercel[.]app

As of July 25, 2026, the domain cache-owa-autodiscover-refreshv4.vercel.app has been flagged as a phishing domain. The domain was taken offline, and it currently returns a 404: NOT_FOUND page title, indicating that the content is no longer accessible. This domain is registered through Tucows Domains Inc. and was created on February 21, 2026. Infrastructure analysis reveals that the domain resolves to the IP address 216.198.79.67, which is hosted in the United States under the Amazon.com, Inc. ASN (AS16509).

The SSL certificate for this domain is issued by Google Trust Services / WR1. Despite the domain being offline, it appears on one security blocklist, specifically PhishDestroy. Additionally, 16 out of 93 security vendors on VirusTotal have flagged this domain as malicious, suggesting that it has been used for phishing activities in the past.

Defenders should be cautious when encountering this domain and should update their network security policies to block any access to it. The exact nature of the phishing content that was hosted on this domain is not yet analyzed, but the presence on a blocklist and multiple vendor detections indicate a significant risk. Security teams should monitor their logs for any attempts to access this domain and consider it a potential indicator of compromise.