How to defend yourself?
We suggest not keeping more currency than you need at one time in a single wallet that you use frequently, using google authenticator for extra layers of protection, encrypting your wallet, and using an official (or officially endorsed wallet). You can also use multi-signature transactions.
Are Bitcoin Wallets Anonymous?
The answer is about the same as the answer to whether cryptocurrency is anonymous or not. The answer is that cryptocurrency is pseudonymous. Due to the open source and public nature of transaction blockchain ledgers, there are little bits of public data that can be used to backward engineer someones identity (in theory). For most of us, the answer then would be, its pretty darn close to anonymous.
