Phishing - (the fraudulent practice of sending emails purporting to be from reputable companies in order to induce individuals to reveal personal information, such as passwords and credit card numbers.)
Phishing is not just limited to emails. Many cyber criminals are now phishing people via text message.
People more likely to click on a link in an SMS than they are in an email- it feels more personal and intended for them.
In some cases we have seen malware / malicious applications delivered using this method.
The phone is then hijacked and the hackers monitor access to accounts such as online banking and then logon using your credentials.
To prevent this you need to check the content for validity, remember the Banks, Government and other Large Corporates will not as for personal details via SMSM.
Virus protection should also be installed on your mobile devices.