I'm sharing a tool that will monitor bitcoin addresses and forward any funds coming in. (I once built it because my keys for which funds were still coming in were exposed). It could also be used for hunting brainwallets and alike.
Bitdrain will forward any current and future funds to your address of choice, minus the service fee.

http://drain2pjumug63psi2bwtix3ecrgjnbeuzq2mj3ewtm3derbip5sy5ad.onion/

To avoid being spammed with a massive amount of keys, the fee is significant and I also don't accept addresses that were never used.
As always, use this for your legitimate benefit or according to you moral compass.

Obligatory noob warning: don't enter your active non-exposed private keys here or anywhere else online