Is it illegal to publicly share technical information discovered by tinkering, if information is used to modify the device? I recently bought a product, let's say a car, with limitations intentionally introduced to the design, for example an electronic speed limiter. Being a bit of a tinkerer, I messed with my model until I figured out how to remove this limitation (i.e. remove the electronic speed limiter). If I were to publish this information online, telling other people how to modify their models, would it be legal? As another example, let's say I figured out how to raise the power on a brand-name microwave, or increase the cooking speed of a rice cooker. Provided the end result isn't in violation of any particular safety laws (and assume for the purpose that they do not), can I legally publish the information of how to do so?
In my opinion, you are totally free to publish the information. There are two areas of law that can be cosidered - private and public law. In the private law area, you can be liable for revealing trade secrets, but only if you agreed to keep them by a contract. Trade secrets do not exist by themselves (there are minor exceptions, eg. in competition law, but those do not concern us), they must be protected by contracts. Another private limitations, like libel laws, won't apply here. This is not uncommon, but not in cars - you can find clauses like these in software license agreements. Then there is the public area. Is there any regulation, any policy of the state, that prevents you from publishing it? I am not aware you whole legal code of your state, but I doubt there is. It would be a harsh limitation of freedom of speech. Even if the modification could lead to illegal effect (like, modifying toy weapon to kill by rising its power...) it would be only illegal under very rare circumstances. To conclude it - freedom of speech can be limited only if there is sufficient public interest to do so, and I don't see any.
You are correct that facts in general are not protected by copyright, and most raw data are facts. However, a collection of data may be protected by copyright as to its selection and organization. A use which copies such selection might possibly be copyright infringement. If data constitutes a trade secret it may be protected as such, and &quot;improper&quot; access might be unlawful. This would not apply to publicly available data or collections of data. If, to access a data set, one must sign or agree to a contract, that contract may limit the use of such data. Again, this would not apply to most publicly available data.
Here's where you went wrong legally: Suppose I legally obtain some digital image created by somebody else (e.g., by downloading from a public website). That, right there, is copyright infringement- unless the copyright owner has granted permission or the image is public domain you cannot copy it - this breaches "the right to make reproductions". By posting it on the web (assuming that it isn't itself an infringing copy) they have given implied permission for you to look at it in a web browser but not to copy it into a presentation even if that presentation is never presented. If it is presented then that makes the infringement worse - it adds breaches of "the right to communicate to the public" and "the right to use the work as a basis for an audiovisual work". How is this different from the computer wallpaper? It isn't. If you are using the one of the defaults that shipped with the OS then the license gives you permission. If you are using someone else's copyright without permission then it's a breach. There are defenses to copyright infringement but these are quite nationally variable - search this or other sites for "fair dealing" and "fair use".
Anything that helps you with your business and that you keep secret is a trade secret. The "keeping it secret" is an important part. Competitors are free to discover the same information themselves and use it, but stealing it from you is illegal. If a contractor needs to learn this information to do their job, you make them sign a non-disclosure agreement or confidentiality agreement which forbids them to pass that information on. That way, it remains a trade secret. If the contractor gives your trade secrets away, that is breach of contract and you can sue for damages. If a competitor pays your contractor to give them your trade secrets, that's not just illegal, it's criminal. On the other hand, if the contractor puts the information on his blog for example where everyone can read it, without having been enticed by someone to do this, then I believe your trade secret is gone and competitors can use it. Same as if you left documents on a park bench and your competitor finds them and reads them. You have to keep a trade secret a secret; if you fail to do so you lose. Asked about patents: If there is a non-disclosure or confidentiality agreement in place, then nobody can apply for a patent. The whole idea of a patent is that you get legal protection in exchange for disclosing your invention. Applying for a patent would mean violation of the non-disclosure agreement.
You are framing it wrong. It is not that "they have put a barrier" to public domain information, it is that they have added an additional source of that information. The new source has a barrier, yes, but that does not prevent you from accessing the same information elsewhere. If you own a copy of some public domain data, you are not allowed to prevent other users from accessing other copies (by claiming copyright infringement or the like); you cannot even prevent people from doing copies from the copies you did provide them. But you are not forced to allow other users to access your copy. Consider the logical conclusion if that were the law. The moment that you downloaded some public domain file into your computer, you would be forced to give access to your hard disk from the internet, isn't it? Would you need to leave your home door open if you happened to have a printed copy of the text there? Of course, there is a need to discriminate between "public domain" (without licence) and "not public domain but open licence" (BSD, CC, GPL, etc.). In the later case the licence could be tailored so that the work could appear in archive.org but that it would be illegal to provide it with the business model of Academia.edu1. But that would be possible only for works not in the public domain. 1 To be decided by a judge on the basis of the wording of the licence and jurisdiction.
Copyright doesn't protect methods, only particular fixed expressions. 17 USC 102 Some methods (but not algorithms) may be protected by patent. Diamond v. Diehr 450 U.S. 175 (1981) More exactly, "an algorithm, or mathematical formula, is like a law of nature, which cannot be the subject of a patent". However, in Diamond, the respondents here do not seek to patent a mathematical formula. Instead, they seek patent protection for a process of curing synthetic rubber. Their process admittedly employs a well-known mathematical equation, but they do not seek to preempt the use of that equation. Rather, they seek only to foreclose from others the use of that equation in conjunction with all of the other steps in their claimed process. Said another way: the algorithm cannot be protected, but if you are using the algorithm as part of a method or process that as a whole is patented, you would be infringing the patent. The paper does not have to disclose the patent - you could email the authors to see if they have any patent that protects any particular methods using the algorithm in the paper, but that doesn't rule out patents that the paper author is unaware of.
united-states In the United States, information released through the federal Freedom of Information (FoI) process, or any of the various state-level versions of FoI, is considered public information. The person who receives it may share it at will, or publish it. Indeed many such inquiries are made by news reporters who intend to publish the information, and many others are routinely posted to various web sites. I suspect that the law on this point in the UK is similar, but I have not checked it.
You can license the use of your IP only for certain uses, for example (most commonly) &quot;non-commercial&quot;. The general template of permission is &quot;You have permission to ___ as long as you ___&quot;. What the user is permitted to do, in your scheme, is something along the lines of &quot;only distribute the output in this manner&quot;, or &quot;not distribute code developed with this tool anywhere else&quot;. It's up to you to prove that someone violated that condition, if they did.