--- title: Two-Factor Authentication: A Second Proof It Is You url: https://hdiss.net/glossary/two-factor-authentication/ business: High Desert Internet Services (HDISS) phone: 775-575-9593, 775-391-5660 email: info@hdiss.net mailing_address: Home base: 200 S Virginia St, Suite 760, Reno NV 89501 (dispatch office, not a walk-in store). Mail: Billing Dept., PO Box 11353, Reno NV 89510 hours: Office open 9:00 AM to 5:00 PM, seven days a week. Network watched around the clock. type: Fixed wireless internet service provider (homes and small businesses), web hosting, customer email, domain registration service_area: Northern Nevada - Washoe, Lyon, Storey, Churchill and Douglas counties and Carson City; availability is checked address by address (line of sight to a tower) plans: Bronze $50/mo up to 500 Mbps down, up to 200 Mbps up; Silver $75/mo up to 800 down, up to 200 up; Gold $99/mo up to 1 Gig down, up to 200 up; ask about the up to 1 Gig / 1 Gig ultra-low-latency service no_online_purchase: true (check your address or call; existing customers pay at https://www2.fernley.net/hdiss/onlinepay/paymentform.cfm) since: 2002 --- - [Home](https://hdiss.net/) - [Glossary](https://hdiss.net/glossary/) - Two-factor authentication # Two-Factor Authentication Two-factor authentication means a stolen password alone is not enough. A code from your phone or a key you hold is the second step. A radio tower at sunset. Stock photo: Adobe Stock. [Photo credits](https://hdiss.net/photo-credits/) ## What is Two-Factor Authentication? The first factor is something you know, a password. The second is something you have, such as a phone that receives a code or an app that makes one, or something you are, such as a fingerprint. The FTC's phishing page lists multi-factor authentication among the ways to protect yourself. App codes are safer than text codes, and a hardware key is stronger still. ## Why does it matter on a fixed wireless connection? Many accounts that matter to a rural household are online: email, bank, the Google account that holds photos, an online payment account and, if you have one, the account for a domain or hosting. A thief who gets one password can reset others. Turning on a second step on the email account protects most others, since resets go to email. The company's pay link and webmail are reached from this site. For webmail, a strong, unique password is the first line, as described in [change your webmail password](https://hdiss.net/support/change-your-webmail-password/). High Desert has not published two-step sign-in for webmail. ## What should I do about it? Start with email, then banking, then anything with saved cards. Choose an authenticator app if offered, save backup codes in a safe place, and keep a second way in. Our guide [two-step verification](https://hdiss.net/guides/two-step-verification/) walks through the steps, and [passwords and password managers](https://hdiss.net/guides/passwords-and-password-managers/) covers the first factor. Never read a code aloud to a caller. Real companies do not ask for one. Tell family members who share accounts what the new sign-in will ask for, so no one is locked out when a code arrives on a phone that is in another room. ### Sources - [consumer.ftc.gov/articles/how-recognize-and-avoid-phishing-scams](https://consumer.ftc.gov/articles/how-recognize-and-avoid-phishing-scams) (FTC, read 2026-10-15) - [cisa.gov/secure-our-world/turn-on-mfa](https://www.cisa.gov/secure-our-world/turn-on-mfa) (CISA; did not load, 404, 2026-10-15) ### Talk to a person - Call [775-575-9593](tel:7755759593) [775-391-5660](tel:7753915660) Open 9-5 every day - Email [info@hdiss.net](mailto:info@hdiss.net) [Check my address](https://hdiss.net/check-availability/#check) ### Related terms - [Phishing](https://hdiss.net/glossary/phishing/) - [VPN](https://hdiss.net/glossary/vpn/) - [Webmail](https://hdiss.net/glossary/webmail/) - [Two-step verification: the one setting worth turning on](https://hdiss.net/guides/two-step-verification/) - [Passwords and password managers in plain words](https://hdiss.net/guides/passwords-and-password-managers/) Local since 2002 Fixed wireless from towers in Northern Nevada. Three plans, no contracts, local support, 4.8 on Google from 36 reviews. [About High Desert](https://hdiss.net/about/)