The attack is believed to have been an isolated incident and one that did not end in any Bitcoin being boosted. The concern, however, is that this attack follows a pattern similar to assaults that occurred in 2014 and is yet another piece of evidence that Bitcoin specializing companies are being targeted via their mass e-mail providers.
Mass e-mail services like SendGrid offer an opportunity to hackers looking to carry out spear-phishing attacks on a large scale, as customers are more likely to open an e-mail from SendGrid without questioning what it is.
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