Bitcoin, Ddos, Bitmatrix, Attack Vectors, Cryptocurrency.
[4] https://www.ccn.com/bitcoin-gold-website-taken-down-by-massive-ddos-attack [5] https://news.bitcoin.com/identify-transaction-malleability-attacks/ [6] https://www.bitsight.com/blog/attack-vectors-types-of-security-breaches [7] https://hacked.com/biggest-bitcoin-hacks-thefts-time/ [8]