From what I've found by checking around some, there's a functional
connection between Adalcache and Microsoft product support.
An example where com.microsoft.adalcache appears; so its likely
windows based and could run in software in macOS; perhaps in
bootcamp or run Windows in a Mac. (where reference appears)
A search I found brought up a few pieces; here's one:
• Adalcache - Microsoft Community | Forum
https://answers.microsoft.com/en-us/msoffice/forum/all/adalcache/a443ddb9-7349-42bb-be69-0cd6415e7117
Microsoft 365 and Office. Search Community member: "I started getting the
following message a day or so ago, "OneDrive wants to use your confidential
information stored in "adalcache" in your keychain."
• Configure keychain - Microsoft identity platform | Microsoft Docs
https://docs.microsoft.com/en-us/azure/active-directory/develop/howto-v2-keychain-objc?tabs=objc
"..When the Microsoft Authentication Library for iOS and macOS
(MSAL) signs in a user, or refreshes a token, it tries to cache tokens
in the keychain. Caching tokens in the keychain allows MSAL to provide
silent single sign-on (SSO) between multiple apps that are distributed
by the same Apple developer.."
• Learn about MSAL - Microsoft Identity Platform - overview | Microsoft Docs
https://docs.microsoft.com/en-us/azure/active-directory/develop/msal-overview
Since I'm not into this, I've stumbled across bits and pieces, in places.
So to focus in Microsoft, this comes up; in association with their stuff.
https://duckduckgo.com/?t=ffab&q=com.microsoft.adalcache+&ia=web
Not sure this does anything, except 'authentication-using-adal-for-net' is a part.
Good luck & happy trails!🌤🐝