Adds additional Operating System security measures

README.md

@@ -279,6 +279,7 @@ Although Windows and OS X are easy to use and convenient, they both are far from
 **Don't link your PC with your Microsoft or Apple Account** | Optional | Create a local account only. This will prevent some data about your usage being uploaded and synced between devices. Avoid syncing your iPhone or Android device to your computer, as this will automatically lead to it being associated with your Apple, Microsoft or Google account. <br>If sync is important to you, there are open source services that encrypt you data, and sync between devices. For example [XBrowserSync](https://www.xbrowsersync.org/) for bookmarks, history and browser data, [ETESync](https://www.etesync.com/accounts/signup/?referrer=QK6g) for calendar, contacts and tasks, [Syncthing](https://syncthing.net/) for files, folders and filesystems
 **Check which Sharing Services are Enabled** | Optional | The ability to share files and services with other machines within your network, can be useful, but also acts as a gateway for common threats. You should disable the network sharing features that you are not using. For Windows, navigate to `Control Panel --> Network and Internet --> Network and Sharing Center --> Advanced sharing settings`, and for MacOS, just go to `System Preferences --> Sharing` and disable anything that you do not need. For Windows users, you should ensure that [remote desktop is disabled](https://www.laptopmag.com/articles/disable-remote-desktop). And also control apps’ ability to sync with non-pairing devices, such as beacons that transmit advertising information- this is also in the privacy settings
 **Don't use Root/ Admin Account for Non-Admin Tasks** | Optional | You should not use administrator / root account for general use. Instead, use an unprivileged user account, and temporarily elevate permissions when you need to make administrator changes. This will [mitigate a large proportion of vulnerabilities](https://www.ghacks.net/2017/02/23/non-admin-accounts-mitigate-94-of-critical-windows-vulnerabilities/), because a malicious program or an attacker can do significantly less damage without an administrator power. See [this guide for Windows and MacOS](https://www.maketecheasier.com/why-you-shouldnt-use-admin-account/), on how to implement this. You should also ensure that a password is required for all system wide changes, as this helps protect against malware doing widespread damage. In Windows this is enabled by default, in MacOS, navigate to `System Preferences --> Security & Privacy --> General --> Advanced`
+**Block Webcam + Microphone** | Optional | To prevent the potential risk of [being watched](https://opendatasecurity.io/hackers-can-watch-you-via-your-webcam/) through your webcam, consider covering it with a sticker, slider or electrical tape, while it's not being used. There are also application solutions- such as [Oversight](https://objective-see.com/products/oversight.html) (MacOS) or [CamWings](https://schiffer.tech/camwings.html) (Windows) - for ultimate protection, consider physically [removing the webcam](https://www.wired.com/story/remove-the-mic-from-your-phone/) all together. Blocking unauthorized audio recording, can be done with a [mic block](https://mic-lock.com/), which works by disabling the primary sound input source- but is not fool proof
 **Don't Charge Devices from your PC** | Optional | Connecting your smart phone to a computer can be a security risk, it's possible for [a self-signed malicious app](https://www.pcworld.com/article/2465320/the-biggest-iphone-security-risk-could-be-connecting-one-to-a-computer.html) to be installed, without your knowledge. Also both iPhone or Android device have sync capabilities, which can lead to data being unintentionally shared. If you need to charge your device, consider using a [USB data-blocker](/6_Privacy_and-Security_Gadgets.md#usb-data-blockers).
 **Randomize your hardware address on Wi-Fi** | Optional | A [MAC Address](https://en.wikipedia.org/wiki/MAC_address) is an identifier given to a device (specifically the Network Interface Controller), and is is one method used to identify, and track you across different WiFi networks. Some devices allow you to modify or randomize how this address appears. See how, on [Windows](https://support.microsoft.com/en-us/help/4027925/windows-how-and-why-to-use-random-hardware-addresses), [MacOS](https://poweruser.blog/how-to-spoof-the-wifi-mac-address-on-a-macbook-25e11594a932) and [Linux](https://itsfoss.com/change-mac-address-linux/). <br>You should also disallow you device from automatically connect to open Wi-Fi networks
 **Use a Firewall** | Optional | A firewall is a program which monitors incoming and outgoing traffic, and allows you to blocks internet access for certain applications. This is useful to stop apps from collecting data, calling home, or downloading unnecessary content- correctly configured, firewalls can help protect against remote access attacks, as well as protect your privacy. <br>Your system will have a built-in firewall (Check it's enabled: [Windows](https://support.microsoft.com/en-us/help/4028544/windows-10-turn-windows-defender-firewall-on-or-off), [Mac OS](https://support.apple.com/en-us/HT201642), [Ubuntu](https://wiki.ubuntu.com/UncomplicatedFirewall) and other [Linux ditros](https://www.tecmint.com/start-stop-disable-enable-firewalld-iptables-firewall)). Alternatively, for greater control, consider: [LuLu](https://objective-see.com/products/lulu.html) (MacOS), [gufw](http://gufw.org/) (Linux), [LittleSnitch](https://github.com/evilsocket/opensnitch), [SimpleWall](https://github.com/henrypp/simplewall) (Windows), there's plenty more [firewall apps](/5_Privacy_Respecting_Software.md#firewalls) available
@@ -286,8 +287,11 @@ Although Windows and OS X are easy to use and convenient, they both are far from
 **Check Keyboard Connection** | Optional | Check your keyboards USB cable before using, bring your own keyboard to work and watch out for sighs that it may have been tampered with. A hardware keylogger is a physical device that either sits between your keyboard and the USB connection into your PC, or is implanted into a keyboard. It intercepts and stores keystrokes, and in some cases can remotely upload them. Unlike a software logger, they can not be detected from your PC, but also they can not intercept data from virtual keyboards (like [OSK](https://support.microsoft.com/en-us/help/10762/windows-use-on-screen-keyboard)), clipboard or auto-fill password managers.
 **Don't use Free Anti-Virus** | Optional | The included security tools, which come with bundled your operating system (such as Windows Defender), should be adequate at protecting against threats. Free anti-virus applications are often more of a hinder than a help- as they require admin permissions, full access to all data and settings, and internet access. They usually collect a lot of data, which is uploaded to the cloud and sometimes [sold to third-parties](https://www.forbes.com/sites/thomasbrewster/2019/12/09/are-you-one-of-avasts-400-million-users-this-is-why-it-collects-and-sells-your-web-habits/). Therefore, you should avoid programs such as Avast, AVG, Norton, Kasperky, Avira etc- even the paid plans come with privacy concerns. If you need a dedicated anti-virus application, consider [CalmAV](https://www.clamav.net/), which is open source. And for scanning 1-off files, [VirusTotal](https://www.virustotal.com/) is a useful tool
 **Periodically check for Rootkits** | Advanced | You should regularly check for rootkits (which may allow an attacker full control over your system), you can do this with a tool like [chkrootkit](http://www.chkrootkit.org/), once installed just run `sudo chkrootkit`. For Windows users, see [rootkit-revealer](https://docs.microsoft.com/en-us/sysinternals/downloads/rootkit-revealer) or [gmer](http://www.gmer.net/)
-**BIOS Boot Password** | Advanced | A BIOS or UEFI password helps to make an inexperienced hacker's life a little bit harder if they get a hold of your PC or hard drive, [here is a guide on how to do it](https://www.howtogeek.com/186235/how-to-secure-your-computer-with-a-bios-or-uefi-password/).
+**BIOS Boot Password** | Advanced | A BIOS or UEFI password once enabled, will need to be entered before the system can be booted, which may help to prevent an inexperienced hacker from getting into your OS, booting from a USB, tampering with BIOS as well as other actions. However, it can be easy to bypass, don't put too much trust in this - it should only be used as an additional step, to exhaust your adversaries resources a little faster. [Here is a guide on how to enable password](https://www.howtogeek.com/186235/how-to-secure-your-computer-with-a-bios-or-uefi-password/).
 **Use a Security-Focused Operating System** | Advanced | Microsoft, Apple and Google all have practices that violate users privacy, switching to Linux will mitigate most of these issues. For more advanced users, consider a security-focused distro- such as [QubeOS](https://www.qubes-os.org/), which allows for compartmentalization of applications and data, and has strong encryption and Tor networking build in. For some actions, [Tails](https://tails.boum.org/) a live operating system with no memory persistence is as close as you can get to not leaving a data trail on your system. BSD is also great for security, see [FreeBSD](https://www.freebsd.org/) and [OpenBSD](https://www.openbsd.org/). Even a general purpose distro, will be much better for privacy compared to a propriety counterpart: [Fedora](https://getfedora.org/), [Debian](https://www.debian.org/), [Arch](https://www.archlinux.org/) / [Manjaro](https://manjaro.org/), [see more](/5_Privacy_Respecting_Software.md#pc-operating-systems)
+**Compartmentalize** | Advanced | Security by [Compartmentalization](https://en.wikipedia.org/wiki/Compartmentalization_(information_security)) is a strategy, where you isolate different programs and data sources from one another as much as possible. That way, attackers who gain access to one part of the system are not able to compromise all of the user’s privacy, and corporate tracking or government surveillance shouldn't be able to link together different compartments. At the simplest level, you could use separate browsers or [multi-account containers](https://support.mozilla.org/en-US/kb/containers) for different activities, but taking it further you could have a virtual machine for each category (such as work, shopping, social etc). Alternativley, consider [Qubes OS](https://www.qubes-os.org), which is designed for exactly this, and sandboxes each app in it's own Xen Hypervisor VM, while still providing great user experience
+**Disable Undesired Features (Windows)** | Advanced | Microsoft Windows 10 is far from lean, and comes with many bundles "features" that run in the background, collecting data and using resources. Consider disabling are: Windows Script Host, AutoRun + AutoPlay, powershell.exe and cmd.exe execution via Windows Explorer, and the execution of commonly abused file extensions. In MS Office, consider disabling Office Macros, OLE object execution, ActiveX, DDE and Excel Links. There are tools that may make these fixes, and more easier, such as [HardenTools](https://github.com/securitywithoutborders/hardentools), or [ShutUp10](https://www.oo-software.com/en/shutup10). Note: This should only be done if you are competent Windows user, as modifying the registry can cause issues
+**Secure Boot** | Advanced | For Windows users, ensure that [Secure Boot](https://docs.microsoft.com/en-us/windows-hardware/design/device-experiences/oem-secure-boot) is enabled. This security standard, ensures that your device boots only to trusted software when the PC starts. It prevents malware, such as a rootkit from maliciously replacing your boot loader, which could have serious consequences. Some Linux distros also work with secure boot (if they've applied to have their boot loaders signed by Microsoft), while others are incompatible (in which case, secure boot will need to be disabled) 
 **Secure SSH Access** | Advanced | If you access your system remotely, via SSH you should take steps to protect it from automated and targeted attacks. Change the port away from 22, use SSH keys to authenticate, disallow root login with a password and consider using a firewall, and only allow certain IPs to gain SSH access, consider using a Virtual Private Cloud as a gateway. Carry out regular service audits, to discover the services running on your system. For more info, see [this guide, on OpenSSH security tweeks](https://www.cyberciti.biz/tips/linux-unix-bsd-openssh-server-best-practices.html)
 **Close Un-used Open Ports** | Advanced | Some daemons listen on external ports, if they are not needed, then they are [exposed to exploits](https://www.acunetix.com/blog/articles/danger-open-ports-trojan-trojan/).  Turning off these listening services will protect against some remote exploits, and may also improve boot time. To check for listening services, just run `netstat -lt`
 **Implement Mandatory Access Control** | Advanced | Restricting privileged access enables users to define rules, that limit how applications can run, or affect other processes and files. This means, that if a vulnerability is exploited, or your system is compromised, the damage will be limited. There are many options available, such as [Rule Set Based Access Control](https://www.rsbac.org/), [AppArmor](https://gitlab.com/apparmor) or [SELinux](https://github.com/SELinuxProject)
@@ -339,7 +343,7 @@ Note about credit cards: Credit cards have technological methods in place to det
 
 **Security** | **Priority** | **Details and Hints**
 --- | --- | ---
-**Sign up for Fraud Alerts and Credit Monitoring** | Recommended** | A Fraud Alert is a note on your credit report, that asks any business seeking your credit report to contact you to confirm your identity before granting credit in your name. Credit Monitoring tracks your credit history, and will alert you to any suspicious activity. You can enable fraud alerts and credit monitoring through credit the bureau's websites: [Experian](https://www.experian.com/fraud/center.html), [TransUnion](https://www.transunion.com/fraud-alerts) or [Equifax](https://www.freeze.equifax.com/)
+**Sign up for Fraud Alerts and Credit Monitoring** | Recommended | A Fraud Alert is a note on your credit report, that asks any business seeking your credit report to contact you to confirm your identity before granting credit in your name. Credit Monitoring tracks your credit history, and will alert you to any suspicious activity. You can enable fraud alerts and credit monitoring through credit the bureau's websites: [Experian](https://www.experian.com/fraud/center.html), [TransUnion](https://www.transunion.com/fraud-alerts) or [Equifax](https://www.freeze.equifax.com/)
 **Apply a Credit Freeze** | Recommended | A credit freeze will prevent anyone from requesting your credit report, hence stop someone applying for a financial product in your name, or a corporation requesting your details without your consent. You will need to temporarily disable your credit freeze before getting a loan, or any other financial product. You can freeze your credit through credit the bureau's website: [Experian](https://www.experian.com/freeze/center.html), [TransUnion](https://www.transunion.com/credit-freeze) and [Equifax](https://www.freeze.equifax.com/)
 **Use Virtual Cards** | Optional | Virtual card numbers let you pay for items without revealing your real card or banking details. They also offer additional features, such as single-use cards and spending limits for each card. This means you will not be charged more than you specified, or ongoing subscriptions or in the case of a data breach. [Privacy.com](https://privacy.com/join/VW7WC), [MySudo](https://mysudo.com/) and [others](/5_Privacy_Respecting_Software.md#virtual-credit-cards) offer this service
 **Use Cash for Local Transactions** | Optional | Unlike any digital payment method, cash is virtually untraceable. Using cash for local and everyday purchases will prevent any financial institution building up a comprehensive data profile based on your spending habits 
@@ -370,8 +374,7 @@ Many data breaches, hacks and attacks are caused by human error. The following l
 **Review application permissions** | Optional | Ensure that no app have unnecessary access to your photos, camera, location, contacts, microphone, call logs etc. See these guides for how to manage app permissions on [Android](https://www.howtogeek.com/230683/how-to-manage-app-permissions-on-android-6.0) and [iOS](https://www.howtogeek.com/211623/how-to-manage-app-permissions-on-your-iphone-or-ipad). On Android, there is a great app called [Exodus Privacy](https://play.google.com/store/apps/details?id=org.eu.exodus_privacy.exodusprivacy), that displays all permissions, and trackers for each of your installed apps
 **Opt-out of public lists** | Optional | In many countries there are public databases that include citizens names, addresses, contact numbers and more. This can often result in unwanted contact from marketing companies, but in some cases used for harassment, stalking and fraud. [This guide](https://www.worldprivacyforum.org/2015/08/consumer-tips-top-ten-opt-outs) from The World Privacy Forum provides good instructions for how to approach this. This includes opting out of: Marketing, Financial Institution Listings, Mail Spam, FERPA Education Listings, Data Brokers and Advertising, as well as joining the National Do Not Call Registry
 **Never Provide Additional PII When Opting-Out** | Optional | When removing yourself from less mainstream data sharing services, do not enter any additional intormation in the opt-out form than what is already publicly availible through that site. There have been cases where this extra info is used elsewhere to add more details to your record
-**Opt-out of data sharing** | Optional | Many apps, services and software automatically opt you in for data collection and sharing. You should opt-out of this, for instructions on how to opt-out, see [Simple Opt Out](https://simpleoptout.com). 
+**Opt-out of data sharing** | Optional | Many apps, services and software automatically opt you in for data collection and sharing. You should opt-out of this, for instructions on how to opt-out, see [Simple Opt Out](https://simpleoptout.com). <br>Often this collected data is sold onto third-parties, who combine multiple data sets together, allowing them to easily deduce your identity, along with your habits, purchases, personal details, location etc
-<br>Often this collected data is sold onto third-parties, who combine multiple data sets together, allowing them to easily deduce your identity, along with your habits, purchases, personal details, location etc
 **Review and update social media privacy** | Optional | Companies regularly update their terms, and that often leads to you being opted back. Check you Facebook, Twitter, Google etc. activity and privacy settings. See also [re-consent](https://github.com/cliqz-oss/re-consent) and [Jumbo](https://www.jumboprivacy.com) which are tools aimed at making this clearer and easier
 **Compartmentalize** | Advanced | [Compartmentalization](https://en.wikipedia.org/wiki/Compartmentalization_(information_security)) is where to keep several categories of digital activity and files totally separate from each other. It means that if one area is breached, then an attacker will only have a proportion of your data, and the rest will still be safe. For example, store your work and personal files on separate devices, or use different web browsers for different types of activity, or even run certain tasks in a contained VM or on a separate device (such as having a work phone, and personal phone, or using a separate browser for social media/ chat rooms, or even running a VM for using specialist software)
 **WhoIs Privacy Guard** | Advanced | Owning your own domain can prevent you loosing access to your email addresses, or being locked-in with a certain provider. However if you do not use a privacy guard, or enter false web admin details, your data will be publicly accessible through a [WhoIs](https://who.is) search. Most reputable domain registrars will have a WhoIs Privacy option