How to store Altcoins (Is Bittrex/Polo safe)

[Emoclaw]

Trustworthy exchanges such as Bittrex and Poloniex are generally safe.
If you have a very diversified portfolio and you can't keep track of all your wallets, just store your altcoins there.

[stealth.money]

I don't recommend store altcoins with exchanges. If the coin don't have a good working wallet it simply tell the team is incompetent to make one, we can also judge this on the coin before buying.

[bearex]

Most people will tell you not to store it on exchanges, but i would still do it, it is kind of unlikely to get hacked, and even if it does, there is still a high probability of the exchange refunding the losses. But if you would like to be extra sure, you'll have to store it in dedicated wallets for each coin.
But if you spread it across some different exchanges, it should really be ok.

[NaXxow]

Currently, most of my coins are in the exchange market, why? because I trusted them more than I trust PC or Mobile wallets that are available right now. Exchange markets value their business that is why 100% sure, your coins are safe.

[Zadicar]

-snip-

Welcome to cryptoworld buddy and i would like to say that all the coins been mentioned arent supported on some wallets in this case you would really need up to download its respective wallet if you are really serious on the security of your own coins.If not then exchange wallets should be fine as long  those are only on small amounts and if not then better to sacrifice on downloading its wallet.Its very risky when you store up huge sums specially if you dont have access on the private keys.

[arbitrage]

I have found that majority of wallets are too complicated when many members keeps their coins at exchanges, we all know what are the risks..Why end user must care about config file or spend time waiting wallet to sync, not to mention when wallet stack on one block..This can be frustrating. Exchanges are very nice and pleasant, you do not need to wait..This is attractive isn't it?

[CoinFoxs]

Store your coins in your wallet, wallets are safer than any exchange site whether it is bittrex or poloneix. Only send altcoins to exchange when you want to trade them otherwise keep them in wallet.

[shirackjs]

I suggest to keep the coins in wallet like myetherwallet, counterparty wallet and individual coins' wallet. In this case, you have full control of the wallets. And if you want to participle in ICOs, it is better not to use wallets from the exchanges since you do not have full control.
Set aside the coins you use for trading and it is safer to keep the rest of the coins in the above mentioned wallets.

[ilham nur77]

I usually store my altcoin in myetherwallet.com wallet, because MEW wallet supports altcoin alot

[Vivisector999]

I can tell you from experience that it is NOT safe to store coins on any exchange.  Sure its safe to store a bit there to trade, but just be sure anything you have there can be lost at any time.

I had alot of my coins stored at Cryptsy, which was probably the largest Alt coin exchange a few years ago, so seemed a really safe place.  They claimed to have been hacked, and a large majority of the coins gone, or they just walked off with everyone's coins?  Either way, the vast majority of my coins vanished with them.  Luckily I had my BTC stored in my Wallet, so that I still have.  Still in the rebuilding process, but lesson learned.