.. and you created a wallet using the multiple signature "multi-sig" feature, move your funds to a different address immediately.
The Parity team has recently been made aware of a critical security vulnerability in the wallet.sol multi-sig smart contract. See the official blog from Parity here.
If you are not using Parity with a multi-sig account, then you do not need to do anything. This is a vulnerability that only effects Parity, not people using MEW, Jaxx, or other wallets.
There will be scammers trying to play of the fear caused by this news. Do not panic.
0x1db account is a white-hat effort that is helping to mitigate damage caused by this vulnerability. If you are effected, follow their updates.