audio_and_video
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- | ===== Secure audio and video services ==== | + | ===== Secure audio and video services |
- | ==== Be careful where you speak ==== | + | ====Key points: ==== |
- | You can have the most secure, highly encrypted, voice communications system available, but it is of little use if you are going to have a conversation loudly or in a public place. | + | * [[# |
+ | * [[# | ||
+ | * [[# | ||
+ | * [[# | ||
+ | * [[# | ||
+ | * [[# | ||
+ | * [[#Phone calls: do not trust the number on screen|Phone calls: do not trust the number on screen]] | ||
+ | * [[#Be careful where you speak|Be careful where you speak]] | ||
+ | * [[#Be aware of fake technical support calls|Beware of fake technical support calls]] | ||
+ | * [[#Safety and security for group calls|Safety and security for group calls]] | ||
+ | * [[#Add a password|Add a password]] | ||
+ | * [[#Create a unique ID for each meeting|Create a unique ID for each meeting]] | ||
+ | * [[#Reserve moderator / admin functions for yourself|Reserve moderator / admin functions for yourself]] | ||
+ | * [[#Keep an eye on the number | ||
- | ====Encrypted voice ==== | + | ====Technical options |
- | https:// | + | |
- | ====Signal==== | + | ===Signal=== |
- | ====Phone calls: do not trust the number on screen | + | Signal' |
+ | |||
+ | It requires the other person to also have Signal. | ||
+ | |||
+ | You need a mobile phone number to set up Signal but, if you do not have a mobile phone, or do not want to give our your actual mobile phone number, you could [[https:// | ||
+ | |||
+ | You can download it [[https:// | ||
+ | |||
+ | === WhatsApp === | ||
+ | |||
+ | If you don't mind giving data to Facebook, WhatsApp offers simple end-to-end encryption. | ||
+ | |||
+ | Like Signal, it offers group messaging. | ||
+ | |||
+ | As well as text-based messaging, you can share files, and make encrypted audio and video calls. | ||
+ | |||
+ | You need a mobile phone number to set up WhatsApp but, if you do not have a mobile phone, or do not want to give our your actual mobile phone number, you could [[https:// | ||
+ | |||
+ | You can download it [[https:// | ||
+ | |||
+ | ===Jitsi=== | ||
+ | |||
+ | Jitsi is an online encrypted audio and video conferencing platform, suitable for multiple simultaneous users. Unlike Signal or WhatsApp, which offers a telephony-like experience, Jitsi is more suited to scheduled meetings, where everyone dials-in to a conference bridge. | ||
+ | |||
+ | You can either use Jitsi' | ||
+ | |||
+ | It can be used with Firefox and Chrome browsers without installing any additional software, and there are [[https:// | ||
+ | |||
+ | Each meeting can have a unique URL, to prevent someone from trying to join (maliciously or by accident), and you can configure it to require someone to enter a password before " | ||
+ | |||
+ | If you have a SIP phone system, you can integrate it with your Jitsi installation and enable phone dial-ins, to offer a completely self-hosted conferencing system. | ||
+ | |||
+ | For conferences with more than two parties, it offers encryption between each person' | ||
+ | |||
+ | I find I get better performance by disabling p2p mode: it places more of a load of the server, but the resulting experience is better. | ||
+ | |||
+ | ===Nextcloud === | ||
+ | |||
+ | If you are using [[email_alternatives# | ||
+ | |||
+ | I find the interface less pleasant to use that Jitsi, but you might find it works for you. | ||
+ | |||
+ | ====Behavioural issues ==== | ||
+ | |||
+ | Not all cybersecurity advice is technical. There are some behavioural tips and tricks which can help keep you, and your firm, more secure. | ||
+ | |||
+ | ===Phone calls: do not trust the number on screen === | ||
When you receive a phone call, you'll often be shown the number of the person calling you. If that matches a number in your address book, you'll probably be shown the name of the person in your address book, rather than the number. | When you receive a phone call, you'll often be shown the number of the person calling you. If that matches a number in your address book, you'll probably be shown the name of the person in your address book, rather than the number. | ||
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There' | There' | ||
- | ==== Beware of fake technical support==== | ||
- | Someone calls up from technical support, claiming that there is a problem on your computer. | ||
- | If it is apparently | + | === Be careful where you speak === |
+ | It should go without being said, but here we go: you can have the most secure, highly encrypted, voice communications system available, but it is of little use if you are going to have a conversation loudly or in a public place. | ||
+ | |||
+ | Trains, coffee shops, the Law Society' | ||
+ | |||
+ | === Be aware of fake technical support calls=== | ||
+ | A reasonably common scam is someone calling up, pretending to be from a technical | ||
+ | |||
+ | Don't get into a discussion with them, or try to lead them on or waste their time. Just put the phone down. | ||
+ | |||
+ | If it's actually, genuinely your IT support team, they'll appreciate | ||
+ | |||
+ | If you think you have been scammed in this way, or are in the process of being scammed, get off the phone, disconnect your computer from the Internet quickly — pull out your Ethernet cable, or turn off the Wi-Fi adapter — and get your machine checked. | ||
+ | |||
+ | ====Safety and security for group calls ==== | ||
+ | |||
+ | ===Add a password === | ||
+ | |||
+ | If the system you are using permits it, add a unique password to each call, and ask invitees to keep it private. | ||
+ | |||
+ | ===Create a unique ID for each meeting === | ||
+ | |||
+ | Some systems let you choose your own meeting ID. Do not use anything common, or containing identifying information. Instead, use a long meeting ID which is unlikely to be guessed or generated. Since most people are going to click on a link rather than try to type it in by hand, it is unlikely to matter how long or complicated it is. | ||
+ | |||
+ | You could use a " | ||
+ | |||
+ | Alternatively, | ||
+ | |||
+ | ===Reserve moderator / admin functions for yourself === | ||
- | Some people like to play these callers along, pretending | + | If you can, reserve moderator / admin functions — such as the ability |
- | My feeling is that it is better to simply put the phone down: certainly don’t give them more information about your system, which they might use, or give others | + | Not all services support this, so you might want to establish some ground rules at the beginning. |
- | And if you think you have been scammed in this way, or in the process | + | ===Keep an eye on the number |
+ | You wouldn' |
audio_and_video.1564932239.txt.gz · Last modified: 2021/07/06 09:26 (external edit)