Alright, let's just set the record straight. This dude who brought these concerns is a verified scammer, going by multiple online aliases. This steemit article is just one example of the crooked games' he's played.
https://steemit.com/bitcoin/@exposer/cryptomedicated-or-james-edwards-and-chayleh-tracey-fraud-exposed-or-picture-proof.
His concerning was with the "approve" function in the code inside the ERC777 standard that gives it compatibility with ERC20 (from my non-technical perspective, I'm not a coder). Someone in our community put it like this;
Alice says to Bob, "I approve of you spending this $20."
"Thanks Alice! I'm going to go spend all of it immediately on BWK. That coin has a great future!"
"Wait, Bob, before you do that, I've changed my mind. I now only approve of you spending $7."
"Sorry, Alice, I already spent it all."
Does this sound like an exploit, or did Alice make a poor decision in approving Bob to spend her money?
So this exploit, actually can't be exploited because nothing in the DAM-FLUX ecosystem utilizes the "approve" function. See for yourself, go trade a regular ol' ERC20 on uniswap, and you'll notice you must
approve it. Trading FLUX and DAM do not require this, as per ERC777. So this is currently unexploitable. Now Hodl has mentioned that later today he'll be replying in a long form to address this concern. Again remember who brought these allegations forward; a toxic member of the crypto community who has a history of scams, evidence fabrication and has had his accounts banned several times (why he's changed his aliases so often). A great twitter to see more on Librehash, is ProofOfFraud on twitter, a twitter account created to expose Librehash.
Now this is flat out dishonest, and misleading. Abra's entire platform was it's interaction with traditional securities markets. You could "purchase" stock, ETFs and the like with crypto on Abra. That's what's gotten them into hot water with the SEC. To insinuate that their platform is anything the Datamine Network is absurd.