Total Newbie.  Apologies for a dumb question.  Please help.
I've been sitting on a BTC wallet and I a 'legacy' BTC address since 2009.  The wallet starts with the number 1.

It's a bitcoin-qt wallet and I've just opened it.  It was over 730 weeks behind.  There is an orange header at the top of the wallet with a message

"URGET: Alert key compromised, upgrade required"

Do I need to do anything other than let it synch?  Do I need to update the wallet?