safety – is pockets weak when unlocked for transactions?

is pockets weak when unlocked for transactions?.I recovered a pockets a while in the past and all is sweet.passphrase key all appears good.However a query got here to my thoughts in regards to the second we make a transaction.I suppose we have to be linked to the web blockchain or nonetheless you name it.Additionally we unlock the pockets for the transactions proper or flawed? if sure,does that not make the pockets vulnereble for hacking even for a number of minuites?assist appreciated.