Online phising or phishing (in finnish kalastelu, also known as Verkkourkinta) is in information technology criminal activity, which aims to gain access to confidential information such as
- personal data or
- acting as a party entitled to access information.
The desired information is in particular password or credit card information, which can be used by an attacker to achieve significant financial gains; even a few victims who have fallen for the scam can make the criminal activity profitable.
Phising usually takes place in the form of e-mail or instant message.
The scam message aims to show as authentic as possible and sent by a reliable party.
The open appearance of e-mail messages helps to deceive the uninformed.
A message whose sender is indicated as firstname.lastname@example.org is not necessarily connected to the yryttis.fi server in any way.
From the header information, you can usually see which server the message originated from.
Some e-mail services, such as the browser version of Gmail, notify the customer when a message comes from a different server than the one indicated in the sender address.