How is "Low Activity" defined in Upwork for refunding an hourly contract customer?

Upwork
1

Low activity is defined as a segment of time where 50% or more of the screenshots show activity levels below 5.
When 50% or more of the hour block is low activity, the entire hour of payment is deducted.

community.upwork.com/t5/Freelancers/Hourly-protection-to-freelancer-doesn-t-work-in-real/m-p/488122/highlight/true#M297726

The message you will receive:

As such, we have reviewed your Work Diary and will be reversing hours logged that did not meet the criteria for Upwork’s Hourly Protection policy.

2

My question about "Low Activity" in the official Upwork Community:
community.upwork.com/t5/Freelancers/Upwork-took-all-my-money-due-to-quot-Low-Activity-quot-despite/td-p/1174557