The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2026
Filed:
Oct. 27, 2023
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Ashish Jain, Bellevue, WA (US);
Shyamshankar Dharmarajan, Los Altos, CA (US);
Avraham Carmon, Hofit, IL;
Murali Krishna Sangubhatla, Fremont, CA (US);
Andrey Terentyev, Pleasanton, CA (US);
Rupa Paramasivan, Sammamish, WA (US);
Sinead O'donovan, Seattle, WA (US);
MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US);
Abstract
Some embodiments enhance the security of domain name resolution and other DNS operations, by automatically intercepting the DNS operation, determining an associated device identity or ascertaining an associated user identity, and enforcing a security policy based on at least the DNS operation and based on at least one of the identities. Some securable DNS operations include resolution requests, reverse lookups from IP addresses to domain names, DNS record accesses, mail server mappings, redirection, forwarding, and DNS record cache operations. Enforcing the policy includes, e.g., preventing a result requested by the DNS operation, permitting computational progress toward the requested result, allowing a different result, modifying a DNS record, or flushing a DNS record from a cache. In some embodiments, DNS operation security functionality utilizes or implements a conditional access security functionality, thereby providing, e.g., a secure conditional domain name resolution.