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Recently, it was seen that the Internet Explorer by Microsoft was seemed to be affected by a security flaw. A hacking group by the name 'DarkHotel' was seen to be responsible behind this hacking.
The hacking group basically made sure that the users click on the link that seemed to be malicious. Earlier too Microsoft had caught a North Korean hacking group for conducting such hacks.
The tricks used by these hackers can very easily make users click on the link in the email sent. This will then eventually lead to entering your details on a self-hosted page.