One of the best protections is software which generates multiple passwords for various websites but only requires the user to remember one of them, Ingram said.
Earlier this month police warned landline users that there was an increased risk of phone scammers conning them out of thousands of dollars.
Three men in Auckland, aged in their 20s and 30s, have been charged in relation to alleged money laundering after an 84-year-old victim lost almost $10,000 after getting a phone call from someone pretending to be from Spark.