As a robust lesson/tute that would probably be best left to others far more tech savvy than me shiney. My main message to anyone who has sought any advice from me is to never ever disclose your personal key/phrase to any wallet to anybody you don't trust with your life. Make two back up's at least and store them safely offline.
Any address can simply be looked up on a blockchain explorer and it will give you the balance and transactions through that wallet for the given Crypto.
This is one of my BTC wallets used for Sales, Swaps, Hookers, Hit's and Coke, Bribing politicians and paying off officials from the Tax office. 1H6pQe13nk3GHk1isdyDGLsvqhJ1v2ftKy
Enter it here
https://blockchain.info/ under "search address" and it will give you all the transactions that have taken place, from, to,Totals in and out, current balance etc etc
https://blockchain.info/address/1H6pQe13nk3GHk1isdyDGLsvqhJ1v2ftKy . It shows the wallets that funds were paid into and the wallet it was from.
But who owns that wallet ? Or the ones the funds were paid into ?
I could have two or ten different wallets, on different devices, or just on paper that are able to be resuscitated anywhere any time, stored on a Camera S.D card and saved as a no delete on a kids camera, or on a thumb drive hidden at the bottom of a lake or by a passphrase emailed via an encrypted email message. If you wanted to get creative there really are no ends to how many times you could send the same funds through shapeshift or different exchanges in different portions to muddy the trail before it ends up where you want it to.
If on the other hand you are referring to personal security, personally it is no more different than securing your email and everyday internet usage. Hackers by and large are not interested in targeting the average Crypto holder and it really isn't worth their time unless they are Juveniles, to go after anything less than a million at a time. As long as your regular internet activity is robust and you aren't in the habit of "Downloading" suspect freak Porn files, (just stream it) you should be right.
Treat your Crypto wallets as more at risk than your email or "Social Media" platforms and you will 99.8% of the time be quite safe.
Passwords and personal Key's are the most vulnerable points with your Crypto wallets, ensure their safety and you should have no problems at all.
All that assumes that you hold your Crypto in your own secure wallets youself, treat them as you would physical PM's, if you don't hold them you don't own them, and then there is alway's a third party risk.
There are times when this is unavoidable, like when you deposit to trade on an exchange or the wallets themselves for a given Crypto are dodgy and/or are unreliable. I try to always keep such trades and holds under the 24/hr withdrawal limit myself on major traditional exchanges but I think that DEX exchanges will rapidly solve this aspect in the near future, if they are allowed to continue to exist that is. I think you would like them shiney once you get used to them.
All peer to peer and you personally hold your cyrpto until you commit to the trade, Fee's are nominal and it is all decentralized blockchain action. Only drawback is that if you only have a crappy thirdperson wallet to withdraw to then.....What to do with the new Crypto ?
Paranoia sell's a lot of hardware wallet's, basic simple precautions and logical security that people already follow with their everyday internet interactions are often more than enough, but people do need to be aware when using mobiles and handing over personal Identification. I personally have never given ANY personal Identification to any Exchange, Wallet, ICO, other than name and email addy, except for an Aussie company I have sold BTC to in the past.
Get numerous wallet's they are free, get numerous trading accounts like Poloniex, binance, Bittrex etc they are free also, Have some core serious wallets that are known to be secure, keep your goodies in one or two of them and most of all keep ALL of your personal key's as secret as your personal sexual fantasies.
No-one needs to know right ?
P.S shiney I'm about as libertarian as they get without being called one M8. The only problem I have with you lot is that you are far to passive. I'd much rather be proactive than reactive once a threat to my and my cultures way of life is recognized for what it is. Stefan Molyneux
I was wrong....