Is ban evasion illegal? What is the legality of "Ban Evasions"? This sounds like a dumb question but perhaps enlighten the ignorant. Ban Evasion, "The creation of a new account on a platform or website after being previously banned for ToS violations". In 2018, the 9th Circuit court of appeals ruled that violating the ToS isn't a crime, but does that still cover Ban Evasion? An example would be, say, Jody had an account with a very popular video sharing platform, he broke the rules and had his account suspended permanently. He learns from those mistakes (because we all make mistakes in our lives), and recreate a brand new account, despite it being written in the ToS that you cannot make a brand new account. He does so regardless, makes a new account, but then gets banned again for Ban Evasion, despite not violating any other rules, Would this be considered a criminal offense? Big companies (or companies in general) will most likely not care, because it's not worth the legal fees to pursue such a case, and it's better off making it harder to ban evade, or write better rules, but regardless, Did Jody commit a crime, whether on state level, or federal level? (In the United States at least).
In theory, such an action could be considered a violation of the Computer Fraud and Abuse Act, specifically 18 USC 1030 (a)(2)(C): Whoever...intentionally accesses a computer without authorization or exceeds authorized access, and thereby obtains... information from any protected computer; Where the relevant "protected computer" definition is in the same section under (e)(2)(B): As used in this section...the term “protected computer” means a computer...which is used in or affecting interstate or foreign commerce or communication, including a computer located outside the United States that is used in a manner that affects interstate or foreign commerce or communication of the United States; Every computer connected to the Internet is used in interstate and foreign communication. One could imagine a situation where a prosecutor might use this particular quirk of the CFAA, for example if Jody was evading bans in order to harass someone and the prosecutor wanted to throw the book at her, but I'd guess most prosecutors would not pick up such a case if Jody's ban evasion didn't cause any damage.
Facebook's local jurisdiction is the US. In the US, making false statements isn't generally illegal or tortious, as they are protected by the First Amendment to the US Constitution. So, Facebook isn't under any legal pressure to remove posts that are posting false information. It sounds like you've already asked them to remove the posts and they refused, so at this point you do not seem to have any procedural recourse with Facebook. It's possible your country or the country the person is posting from lacks free speech protections and would either prosecute or allow suits against someone posting false information, if that's the case you could try to get the local equivalent of a prosecutor to prosecute them. I realize that is unlikely to happen, the reality is that coordinated fake news on the Internet is still something that platforms are figuring out how to deal with fairly.
Generally speaking, what isn't illegal by law is legal. It's possible for law enforcement agencies to share crime rates, maps, and their data, but within any laws regarding access and sharing of that data. Such crime data may be publicly available, but that depends on local and state laws. The local or state agency would have to enter into a legal licensing agreement - if local and state laws allow such sharing - with the GPS company to provide the data, update it, and reasonably assure that it is accurate. The more realistic reason GPS systems might choose to not show crime data may be public relations. If a GPS user lives in an area that has been objectively identified by data as having a higher than baseline crime rate, i.e. for carjackings, that user may not be very happy with that designation. Worse, what happens to public relations when data errors show an area is wrongfully identified as high crime? What kinds of lawsuits could result? Real estate agents suing since bad data from a GPS unit soured the sale of a house?
A creative prosecutor could probably come up with a raft of charges. But you could start with the federal wiretapping statute, 18 USC 2511, and the anti-hacking statute, 18 USC 1030. Here is an indictment brought in 2012 under the anti-hacking statute against someone who distributed and used this kind of software. Depending on the facts and the jurisdiction, this may also constitute the tort of intrusion on privacy or seclusion, a tort recognized by the Restatement (Second) and actionable in many jurisdictions. The most common test is whether the invasion would be "offensive to a reasonable person." And no, contrary to the commenter's view, a "click to accept" license is not a get out of (literal) jail free card here. Courts interpret adhesion contracts liberally to favor the signer, and outrageous terms hidden in small print are not guaranteed to be enforceable, especially if the software is clearly designed to trick people into installing it. The license terms might even hurt you, by providing evidence of your intent to use the software for perving rather than its ostensible use. This is not an exhaustive list, and there may be additional state-level statutes that apply. Bottom line: yes, this is clearly illegal, and the courts will be reluctant to let you trick people into getting away with it.
What would be the legal validity of this behaviour? Your changes to the browser source of the website contract or license of Terms of Service (TOS) - essentially a "click-wrap" license - before agreeing to it means nothing in a legal sense, other than to void the contract. The other party (the website) can't possibly agree to those contract changes without them being submitted as contractual changes and agreeing to them, if they did agree to them. That's basic contract law. That website TOS probably has a clause that says that if you don't agree to the TOS in full, as written, without modifications, you can't use the website. And the TOS may also say that they reserve the right to prevent you from using the site by closing your account or even blocking your access. Your "witness" to the contract changes is meaningless, as your witness is not a party to the contract. And any witness to the fact that you have changed the terms of the TOS before agreeing to it would work against you in a civil proceeding as proof of your attempt at modifying the contract.
This question really depends on the specific countries involved, as all law depends on jurisdiction. However, there are essentially two ways that breaking into foreign computer systems could be illegal: 1) Your own country has laws against hacking that include hacking into foreign computers or 2) The country you're breaking into has laws about hacking that are not limited to citizens. In the first case, your own country would find such "hacking" illegal; in the second, your target country would find such "hacking" illegal. If you violate the first, which is the less likely option, you could be traced, located and prosecuted by your own country. If you violate the second, which is the more likely option, the target country would target you for extradition and prosecution. Depending on the amount of political power your target country has, this could result in you being shipped off to another country to face their courts, without the protection of your own country. In other words, it could very well be illegal, though the specific sentence resulting from such a crime is far too specific to even attempt to address in the general case.
In general this is protected by the first amendment. It is not in general a problem describing how one can one can do something illegal. But there are special cases to be careful with. You might want to do some research into the limits on free speech. It would be hard to provide an answer that fully covers all your different cases and you would need to be more specific about what illegal activity you want to describe. In describing how to do something illegal, you might accidentally share information that you are not allowed to share. When you post things online, this can be considered as publishing or exporting. Therefore certain export restrictions might apply. Also, It is illegal to publish bomb making manuals, with the knowledge or intent that this information be used to commit a federal crime of violence. See https://www.law.cornell.edu/uscode/text/18/842. There are restrictions on publishing material relating to cryptography without having an export license. Granted, this isn't necessarily related to publishing things that are illegal, but just to give an idea about how publishing/exporting knowledge can causes problems. See https://en.wikipedia.org/wiki/Export_of_cryptography_from_the_United_States ITAR (International Traffic in Arms Regulations) sets restrictions on what you can publish about arms. What you publish can't be “directed to inciting or producing imminent lawless action.” See for example https://en.wikipedia.org/wiki/Brandenburg_v._Ohio. One might imagine that you could get into trouble if someone interprets what you do as inciting or producing a lawless action. It might sound obvious, but you want to make sure that you have the right to share the information that you have. The information that you are providing might be copyrighted in some way.
This is a complicated question because adblockers have grown increasingly complex in recent years. What it means to "block ads" from both a legal and technical perspective is more complex than it was just a few years ago. First the broad strokes: It's not illegal to block ads. Multiple court cases have defended users' rights to control the information that enters their computers / devices. You have the legal right to view or not view whatever you like. But... that doesn't mean your use of an adblocker isn't in violation of US law. The crucial issue with legality when it comes to adblockers is less about blocking ads, and more about circumventing a websites measures to defeat adblockers. The US DMCA has strict wording regarding 'circumvention of access controls'. If a website has taken active measures to prevent access by adblocking users, and your adblocker circumvents those measures -- this is very likely a violation of the DMCA. The important point here is that the legal transgression isn't blocking ads. It's the circumvention of access controls which in attempt to limit access to adblock users. There's a good write-up on this topic here: https://blockadblock.com/adblocking/adblockers-dont-break-the-law-except-when-they-do/ Additionally, a website's "Terms of Use" agreement may address adblocking. As we all know, website ToU's are not always legally binding on the site visitor. But sometimes they are. There's a good exploration of how to implement a ToU that addresses adblocking here: http://blockadblock.com/adblocking/addressing-adblocking-terms-use-agreement/