To-days I was challenged twice while trying to get into my e-mail. This is not top secert, you guys are overreacting.
Big Brother
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Here’s why you may be asked to verify your account at sign in: https://help.yahoo.com/kb/sln8923.html
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Ken Brett commented
I like some security but this is over the top. It is SO intrusive I am tempted to change providers and DROP yahoo. Challenges should be periodic not daily and even within the same computer session.