# WiFi security and multiple AP's

**URL:** <https://community.openenergymonitor.org/t/wifi-security-and-multiple-aps/6362>\
**Category:** Hardware\
**Created:** [22 January 2018 17:55 UTC](https://community.openenergymonitor.org/t/wifi-security-and-multiple-aps/6362 "2018-01-22T17:55:50Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![Robert.Wall](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/robert.wall/32/38246_2.png) [@Robert.Wall](https://community.openenergymonitor.org/u/Robert.Wall)\
**Post date:** [23 January 2018 01:24 UTC](https://community.openenergymonitor.org/t/wifi-security-and-multiple-aps/6362/5 "2018-01-23T01:24:44Z")

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> [@Wanted: emonTH 2 sketch that handles many external ds1820Bs - I'll pay for it!](https://community.openenergymonitor.org/t/wanted-emonth-2-sketch-that-handles-many-external-ds1820bs-ill-pay-for-it/6306/33):
>
> when somebody changes the WIFI password (which ideally you do regularly!)

> [@Wanted: emonTH 2 sketch that handles many external ds1820Bs - I'll pay for it!](https://community.openenergymonitor.org/t/wanted-emonth-2-sketch-that-handles-many-external-ds1820bs-ill-pay-for-it/6306/42):
>
> I’ve never quite understood this

My understanding is that the advice to change passwords regularly is out of date. I believe the present thinking is that you should have a random password (ideally generated and stored in a Password Safe) and only change it when there’s a suspicion that it has been compromised.

> **[The problems with forcing regular password expiry](https://www.ncsc.gov.uk/blog-post/problems-forcing-regular-password-expiry)**
>
> Why the NCSC decided to advise against this long-established security guideline.

> **[Password guru regrets past advice](https://www.bbc.co.uk/news/technology-40875534)**
>
> Advice to frequently change passwords and to muddle up words with numbers and symbols has changed.

> **[Password\_guidance\_-\_simplifying\_your\_approach.pdf](https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/458857/Password_guidance_-_simplifying_your_approach.pdf)**
>
> 1543.10 KB

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