There is no attack its appril 1 joke. Dont panic .
Whether it was an April Fool joke or not the ASIC manufacturers are probably running there new Cryptonight ASICs at full blast to help mitigate the cost of manufacture before passing them onto the customers who paid for them (bit of a scam going on there) and these customers will get there ASICs after some of the Cryptonight coins have changed there algorithm and so the ASICs they bought will be almost useless.
Sumokoin and Monero have announced they are soon to change the algo, when is ETN changing ?
ETN source code is just a copy and paste of XMR so they must wait for XMR to release github so they too can again copy and paste it they decide to change algorithm. Mobile mining is not more than buckshot airdrop coins from premine. Dev not care if price drop it give them time to buy more cheap etn supply for airdrop. They already dump coins when online wallets were locked during cryptopia opening and now love to cover-to-close much cheaper using ico raised funds. ETN is coin ponzi scam. There no need for April 1st joke. Investors have always been the fool from launch