So this safe ?
Yes, it is safe; using a graphics card is recommended. I have a laptop with a weak graphics card, and the speed is 800 passwords per second—which is very slow.
Do you have the bitcoin address?
00:56:27

getaddressinfo "1BbEaWRTgWuC9qrYYfphGLh59V4idm9Vdw"
00:56:27

{
"address": "1BbEaWRTgWuC9qrYYfphGLh59V4idm9Vdw",
"scriptPubKey": "76a914742abc117647200db1060822a1d244cb21153f5e88ac",
"ismine": true,
"solvable": true,
"desc": "pkh([742abc11]03bafbe869a0df78cb7047122510bd8f97fa6ee389e4543b00329a1f60a402389d)#w7yyp45j",
"iswatchonly": false,
"isscript": false,
"iswitness": false,
"pubkey": "03bafbe869a0df78cb7047122510bd8f97fa6ee389e4543b00329a1f60a402389d",
"iscompressed": true,
"ischange": false,
"timestamp": 0,
"labels": [
"734-01 Transfer from Chris Home Wallet"
]
}