It's a bad news and I think that may be the reason for the decline in altcoin prices today. News about hacked MyEtherwallet also has a big effect on altcoin volume today, hopefully this issue can be resolved soon
This is kown bug since many days. In my opinion this is pure fud.
I can not really understand it, because all big and famous erc tokens are not affected.
Exactly! I'm sure that there is only a handful of low value tokens with that invalid function. Developers of these token will probably need to change their smart contract and do a token swap.