Context: Conditional Access isn't intended to be an organization's first line of defense for scenarios like denial-of-service (DoS) attacks, but it can use signals from these events to determine acces

Context: Conditional Access isn't intended to be an organization's first line of defense for scenarios like denial-of-service (DoS) attacks, but it can use signals from these events to determine access.

I am trying to find the meaning of "signals" taken from the sentence above.

This is what I found so far:
User or group membership
IP Location information
Device
Application
Real-time and calculated risk detection
Microsoft Cloud App Security (MCAS)

But the context and my research were taken from the following URL: https://docs.microsoft.com/en-us/azure/active-directory/conditional-access/overview