The amount you received from your sales via PayPlug are immediately put on an escrow account, at BNP Paribas bank.
In compliance with the French banking reglementation, this escrow account allows the amount you have on your PayPlug account not to be mixed up with other merchants' or even PayPlug's.
This escrow account then ensures you the highest security when it comes to your payment received via PayPlug. It especially ensures you the money will neither be used for any other motive by PayPlug, nor by any other financial partner.
The money available on your PayPlug account isn't invested and remains your property.