Twitter’s reply-limiting feature: "Before you Tweet, choose who can reply with three options: 1) everyone (standard Twitter, and the default setting), 2) only people you follow, or 3) only people you mention. Tweets with the latter two settings will be labeled and the reply icon will be grayed out for people who can’t reply. People who can’t reply will still be able to view, Retweet, Retweet with Comment, share, and like these Tweets."
Avoid swarms or targeted harassment on Twitter Follow Heidi N. Moore’s instructions on Twitter to block all list creators you don't know.
StopDataMining.me Opt-Out List learn what kinds of information data brokers have on you and how to opt-out.
Data Brokers Opt Out List - World Privacy Forum another guide for opting out of data-broker sites.
How reporters and newsrooms can prepare for doxxing Emma Carew Grovum from The Daily Beast shares 5 top tips from the ONA16 panel on "Dealing with Doxxing."
Freedom of the Press Foundation's digital security guide. FPF protects and defends adversarial journalism in the 21st century.
Pick one of the guides below and methodically "opt-out" of each one of the many data-broker websites.