Spoofed emails could easily land in user’s Gmail inboxes without even warning them of suspicious activity, security researchers have discovered.

While spam is normally used to deliver malicious documents or links to unsuspecting users, spoofed emails have a bigger chance of luring potential victims, because they are likely to click on a link or open a document coming from what they believe is a trusted contact. When it comes to spoofed messages, the sender is impersonated or changed to another, thus making messages appear legitimate.