"HSBC Security Improvements" email pretends to be a legitimate email from HSBC Bank requesting you to click on a link that directs you to a fraudulent website in order to steal your banking and private personal information. The first hint of fraud is that the email addresses the email reader as Dear "Customer" as opposed by your actual name. The "HSBC Security Improvements" email also misspells the word through as "trough" and there are grammatical errors. The biggest tip off that a criminal scam is being perpetrated is the fact that HSBC Bank, nor any other reputable bank would not request sensitive personal information in an email.
The "HSBC Security Improvements" emails attempt to scare you by warning that your account will be suspended if you do not respond within 48 hours. This is another obvious red flag indicating that "HSBC Security Improvements" email is a scam. If you receive this malicious email, do NOT respond or click on the link. Instead notify your bank and forward the email to them. If you should accidentally respond and click on the link, notify your bank IMMEDIATELY as the funds in your bank account could be in danger of financial loss as well as you having your personal and private information at risk which could invite identity theft amongst other possible horrible consequences.