The World of PTC! Going down?

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What's happening to the world of PTC? This past few weeks the DDOS attack penetrated a lot of good sites like the famous Svbux which is proven to be legit and has the same reputation like neobux, and just this day Linxsense just announced that they are closing because of the attack. Although I know that they pay and legit it discourages me more to join because their servers can be easily destroyed like that, what if the pre-launch and the new ones? They can be easily attacked? I just wanted to earn a couple of pennies but it turns out that a lot of hacking is being done to these sites.