Even someone with a passing acquaintance with cyber security will be aware of the dramatic surge in ransomware over the past couple of years. This has been coupled with a very distinct change in the nature of these invasions. Whereas earlier attacks were more “scatter-gun” in their approach, they are now likely to be far more sophisticated and targeted, with increased focus on businesses rather than individuals, partly due to companies' greater familiarity with Bitcoin and the scope for greater rewards.

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