Let's say I wanted to prevent myself from being doxxed. What steps could I take to make it more difficult?
2) Start adopting new pseudonyms. Use a different one on every site, and a password keeper to help you stay logged in. If you happen to forget, don't worry. Treat every account as disposable. These are not "you". This is not "your brand". These are merely tools that allow to into a walled garden party wearing the mask of anonymity.
3) Do not mix your two online personas. Keep your politics, jokes, and personality in your pseudononymous accounts. Keep your boring safe opinions and pictures of dogs in your primary account. Don't talk about anything in your real life in your pseudonymous accounts, even the weather. Reserve that kind of discussion for in-person friends only. If you make a mistake, just delete the account and make a new one.
If you get in fights online or are a member of some group that frequently experiences abuse (from inside or outside your community) then you should consider rebuilding your social media identities, giving up some of them, compartmentalizing your digital life so that your work or business don't overlap with your friendships or public persona etc.
If things have gone sideways and you think people are already motivated to go after you, a determined person can pull your details together very quickly with a mixture of software tools, access to commercial databases, and some detective work. It's not difficult for someone with experience. In such a situation you should probably work with a commercial service like https://privacyduck.com which will do the work of erasing your digital footprints.
It's not cheap, last time I looked they charged $600/year or so and depending on your circumstances and vulnerability that might need to be budgeted as an ongoing expense. I'm sure there are other competitors int he same field but am not sufficiently informed to make comparisons.
I agree with sibling comments here that the only way to really prevent someone from identifying you from your online personas would be to start over. If you want to truly be anonymous, you need to build these new personas with OPSEC in mind. The process includes 5 general steps:
1. Identify information you feel is critical. In your case, this could be anything that ties your online activity to your real life identity.
2. Identify your threat. This can be simple or complex depending on your needs. Are you concerned about hiding from pissed off gamers, hacktivists, or a nation state? Knowing the enemy you face will help you better understand their potential capabilities to find out information about you and how they could use this information.
3. Assess your vulnerabilities. Look at yourself from the viewpoint of the attacker. What information would you use to dox yourself?
4. Assess your risk. This can also be pretty involved depending on your vulnerabilities and threats. What could someone do with this information? How bad could you be hurt?
5. Apply countermeasures. Figure out how you can mitigate the risk you found above. This may include closing old accounts, creating new accounts, creating alternate personas, disinformation, heading off potential impact from a dox, etc.
Hope my ramblings helped.
If you are the generally paranoid though, never publish photos from around your home, never make online purchases with home delivery, but choose midpoints like post stations to collect them.
Assume that if you type your info somewhere, it would be sold and will pop up somewhere. Currently my name, home address, and phone are published in a american data broker website. If I want them removed, I need to send them an id with even more personal data and even then they insist that it will be hidden from public view, not deleted. I need a lawyer if I want the situation delt with properly.
You will leave traces of information no matter how hard you try if you spend enough time on any site.
Btw, did you know that even if you ask dang to rename your account - people can easily find you by searching on hn.algolia.com because they don't auto update indexes on renames?
Same for many other sites. There are many indexes and archives that never update old data and won't care about GDPR requests.
Keeping totally separate identities across different services is key (using unrelated usernames, avatars, emails for every service). It’s also extremely difficult and unpractical to pull off.
In most doxxing cases perpetrators manage to get access to a single service and use it as a foothold to penetrate to other services. For example, someone learns your email from a forum, somehow hacks your email, gains access to Dropbox and finds the scan of your passport, driver's licence and social security card. Email in general is the key one's digital kingdom so the surest way to minimize the blast radius is to keep everything separate and unrelated.
Edit: typos
Why can i do this? Sounds like you know the problem already and want a push ;)
A lot of people I know have, no photo of their face, and not their real full name, and goes without saying totally private. Use Facebooks feature to check you have no accidental public ones.
Using photos people have taken from their house, I've found the location and unit numbers before. So all these need to be private if you are really worried.
Wives/husbands/family are good attack vectors. Not much you can do here to begin with. But you want things locked down to at least friends of friends.
I shouldn't be able to easily escalate from necessary public profiles to private ones.
But it's all about working towards the goal. Just make a start. Every little bit reduces the chance you'll get doxxed. You might just have to be the stronger gazelle.
Maybe privacy is dead, maybe it's about having a job you can't be fired from or a gun in the house? Some peoples incomes depend on the public profiles.
https://www.amazon.com/dp/B0898YGR58
This guy sells books on both sides, OSINT and privacy.
I run my own mail server, and I have a domain registered for handling incoming mail. Every single website, and I mean every single one, has a different email address under that domain.
Now, while it could be relatively easy to correlate all usernames with domain part of the email, I make it as difficult as possible.
Additionally, some handles are further separated. For example, my professional handles (so stuff I use at work but on my name, my GitHub public email, and similar stuff like that) are under other domain names from a professional (paid) email service. And even those aliases get changed over time (damn you automated email crawlers).
So even if the database of a website was leaked and my mail was in that database, I would , as soon as I’m made aware of the breach, delete the account immediately and instruct my mail server to discard all incoming mail to that address. Of course, every online identity of mine has a different name. This onr has a Japanese name, but I have others with common American names, tongue twisters, and sometimes keysmashes. Good luck correlating it all.
If you want to prevent somebody who knows your identity from finding your phone number, address, etc... good luck. Whether somebody can find that would pretty much boil down to how much effort they’re willing to invest.
Source: I used to do some of these sorts of OSINT investigations as part of a fraud investigations team.
Which is a problematic turn of events. When I grew up, the western world was not like China or Eastern Europe, as it is now. So you didn't use pseudonyms, because your name was your brand. Only immature kids or lgbt people used pseudonyms, the rest was honest, and it helped you with your job prospects. Now a new wave of fear, bullshit and lies has taken over cooperate and public matters. You can now even trust the Eastern Europeans more than westerners.
The above is not complete snark: a friend's brother, whose daughter's fiesta de quinceañera I'd attended, was put in a coma working full-time for a fellow who employed two full-time accountants as part of his "family office" but who was not only too cheap to carry insurance but then even explicitly said the brother, as an independent contractor, should've had his own and refused to contribute anything towards his medical bills. I spent an afternoon trying to track down assets, and the structure I managed to reveal was ... interesting.
Miniscule levels of risk are not worth worrying about, unless you are a figure in the public spotlight or likely to be a person of interest to police or intelligence orgs, in which case you should probably seek advice specific to your situation.
Edit: Sounds like it's too late for you, but don't be an activist online using your real name unless you have some real, physical security.
Stay quiet and mainly share content about food, gardening, and occasionally programming.
do your family a favor and remove them too
2) get a chromebook or other cheap laptop that isn't connected to "you"
Use the laptop and phone for anything you do online. Do not connect to public wifi, or use the accounts on other devices or your personal accounts on these devices.
You should be able to stay relatively anonymous this way. You will have a phone and laptop to run whatever operations/statements or other activities you want to remain private from your real life person.
You may want to go a step farther and use a pre-paid VPN service for all activities as well. But by all means, don't mingle your devices...
Harder in blog articles if you already have an identity and a real name, but if you are in twitter or reddit, you can post about fake locations, hobbies, family members etc. This way at least is harder to be doxxed by automated tools and add some plausible deniability.
It may not be possible to have different spheres of life cohabitate peacefully, especially if the doxxing involves shining light on old character flaws you’ve since remedied, but thanks to the digital world we live in, can be easily surfaced. I’d say “get off social media forever” to at least prevent your self 20 years in the future having this same worry about whatever it is you are innocently sharing this month, but that always seems to draw a gasp from people who apparently can’t imagine life without the internet.
Seems to me that everyone who has ever been doxxed is doing “something” that draws attention to them. That doesn’t make it right, but I haven’t heard of doxxing of any quiet Amish families, or guys building cabins in the woods minding their own business.
It’s usually some loudmouth on some open source software forum, or some politician’s operative, or someone being a potential whistleblower.
What you are asking is, in essence, how can I keep from getting punched in the mouth? It’s not too difficult, if you think about it. Someone randomly punching you in the mouth “for no reason” is about as statistically probable as being struck my lightning twice in the same week.
Some people attack punches more than others. I’m not saying it’s right, or even deserved. Just that there are life choices that can increase the odds.
Maybe what you’re really asking is how can I avoid the risks of some life choices I am making or want to make?
All the advice here will only partially mitigate the risk. The only real way to eliminate it would be to make different choices to stop unwanted attraction.
I somewhat laughed at all the “privacy” tips here. My friend, if you tick off the wrong person, they will find you or hire someone good to do it for them. And if doxxing is their chosen revenge, you can’t choose to then decide to be a quiet mild-mannered ordinary citizen when you already opened your mouth and drew attention to yourself.
I’m sure everyone who flips someone off across the street wishes the same when they see the scrawny guy reach into his jacket and pull out a gun.