Waves LPoS system guarantees safeness.
Your WAVES do not leave wallet when you are
leasing and your funds always remain on your full control.
You can lease using the official Waves wallet
or Trust wallet.
You can cancel and resume leasing at any time -
you will still receive payout for the time that your
balance was in leasing on the node.
But don’t forget that leasing operation takes
1000 blocks (~17 hours).
All payouts below 0.005 WAVES are accumulated and sent when this value is reached.