Security tips for taxpayers. The IRS suggests that you always: use security software with firewall and antivirus protections, make sure the security software is turned on and automatically updates, and encrypt sensitive files such as tax records that you store on your computer. Use strong passwords and avoid phishing emails. These are among the pointers offered by the IRS and its “Security Summit” partners partaking in the second year of an outreach campaign. Go to http://bit.ly/2ggNgoX for other tips.