Bitcoin has allowed pirates to revive the principle of cryptolocker. The historical shortcoming of the latter, namely the difficulty of recovering the ransom anonymously, has now been solved thanks to decentralized cryptolocking.
The high profitability of cryptolocker ransom software has eclipsed all other attack methods in terms of volume.
This is accompanied by considerable efforts to personalise these messages. If yesterday, individuals were the most targeted via pathetic and unconvincing “deep-sea fishing” campaigns, today spear-phishing has become the rule. Everything is good to imitate a legitimate email as well as possible with important innovations: fake VoIP answering machine messages, fake newsletters with a malicious “unsubscribe” link, etc.
Information system users must therefore be regularly challenged in terms of their vigilance.