From another thread. I guess it's the same for PND.
In three situations:
1) If the coins are sent from a local wallet
2) If the coins are sent from an online wallet with a static address
3) If the coins are sent from an online wallet with a dynamic address
I've always been afraid of mis-copying/mis-pasting an address into the corresponding field, so I want to get this cleared to prevent future worry.
Would appreciate any info :]
Thanks!
the 3 situations are exactly the same.
If you send coins to an INCORRECT but VALID address they are gone forever.
Bitcoin addresses have a 32 bit checksum so the odds of creating a typo which is INCORRECT but VALID is about one in 4 billion.
Still it could happen. If you are copying and pasting the odds are essentially zero (that you could drop or add an extra digit and still produce a valid address with the same checksum).
The much more common problem is doing something stupid:
For example thinking you are sending coins to yourself (i.e. your address) but copying the last outgoing address and sending a boatload of coins to someone you sent coins to before.
Obviously the network can't protect you from that.