Inconsistencies can be human error, but they are present in most scams.

Telcos like Verizon have millions of customers.

A link could be inserted that points to a fake web page where customers are requested to enter billing information and promptly scammed.

People love a good deal, and these exist in abundance for hotel chains like the Marriott.

Phishing scams like this could direct users to fake booking sites in order to swipe financial details.

The Hilton is another popular and trusted name in accommodation.

Unfortunately, its popularity is what could make it a good target. Even legitimate-looking email addresses will not necessarily be kosher.

Recruitment and career agency Robert Half was another victim of the Epsilon breach.

Customers should be wary of scams that seek to harvest details for identity crime.

Borders sends out coupon offers to readers.

Scammers could hijack this marketing ploy, inserting links to point users to infected sites. Or they may ask users to download infected software to access the deals.