Is it legal to use old software illegally? In this question, I'm talking about the unsupported or discontinued software or the old versions of programs that are no available to buy on their official websites as there is already newer versions (e.g. MS Office 2007). I would like to crack those programs to be able to use them without buying them (which was illegal). Is that okay according to the US law?
Is it legal to do something illegal? No. Those programs are still under copyright and will be for many, many decades to come (for Office 2007 copyright expires 1 January 2127). You can only use them in the way the copyright owner allows which usually includes paying for a license. The owner of a copyright may not want to licence/sell it anymore: that is their right. If the licences they have sold are transferable you may be able to buy one second-hand.
There are two common approaches. The first approach is simply to let copyright law apply. Under the default terms, the IT provider has no rights to copy your software. Running software is allowed, of course, and not a problem that you need to deal with vis-a-vis the IT provider. You still can sue them if they copy your software, even in the absence of a contract. That is the chief function of copyright, after all! The second approach is to allow the customer to subcontract third parties to act on behalf of them, while acknowledging that such subcontracting does not dissolve them from any responsibilities towards you. In other words, if the 3rd party would do something unauthorized, you have a claim towards the customer and they have a distinct but related claim towards their IT supplier.
Forget about copyright or EULAs. In the UK this would be illegal under the Computer Misuse Act (1998) and you could be jailed for up to a year - specifically Unauthorised access to computer material. (1)A person is guilty of an offence if— (a)he causes a computer to perform any function with intent to secure access to any program or data held in any computer, or to enable any such access to be secured; (b)the access he intends to secure, or to enable to be secured, is unauthorised; and (c)he knows at the time when he causes the computer to perform the function that that is the case. This law has been applied even to simply altering parameters in a GET request to a website, so it is incredibly broad. Other jurisdictions have similar wording, so be aware!
Yes, it does. Using the downloaded content, whether it was scraped or individually downloaded one file at a time, for research or for commercial purposes would violate that TOS provision (unless some other provision contradicts it, or you obtain specific permission). The site owner could sue you for such a violation, should the owner become aware of it. I do not think it would be likely to be a criminal offense, depending on the jurisdiction.
The agreement linked in the question seems to be or to purport to be, for a non-final, non-production version of the board. I have seen such agreements used, both for hardware and software, used when beta-test versions of products are being distributed to those who agree to do such testing, often in exchange for a reduced price on the final product, or an early look. I have also seen similar language used when an evaluation version of a product is provided free, or at a much reduced price. In such a use, it would be a reasonable contract, it seem to me, and I see no reason why if it were agreed to by both parties in such a situation, it would not be binding. Often such agreements also include a non-disclosure aspect, but this one does not seem to do so. I cannot see how such an agreement could be made applicable automatically, without both parties having chosen to agree to it, and indicated this by signing, clicking, or in some other positive way. I doubt that it could be made automatically applicable, on an "by using this product you agree" basis. I don't know of any physical consumer product, or appliance, sold with such an agreement in ordinary commerce. I am not sure what would happen if a manufacturer wanted to require all purchasers to sign such an agreement. I don't know if it would be binding. I would think that the purchaser's rights under the First Sale doctrice, could be modified by a valid contract agreed to by the purchaser. I do not think that they could simply be revoked by a contract of adhesion, which the purchaser had no choice to decline before making the purchase. As the OP says this was not signed or agreed to in any way, I can't see how it binds the OP.
There is also the part that says &quot;except as expressly permitted by law&quot;. In the USA, you are allowed to run the software. This means the operating system making the copy that transfers the software from your hard drive to the RAM of the computer, and all necessary changes there. And this includes modifications to relocate the software, or to protect it against certain attacks by hackers, and I'm confident that Apple checked that it includes translating x86 machine code to ARM machine code and store the translated copy together with the original. Similar things have been done already around 2000 or so, and no software manufacturer has ever complained.
The only issue relevant to your age is the (ir)revocability of the license. GPLv3 purports to be an irrevocable license. To be really irrevocable, the license would need to grant certain rights in exchange for something of value, that is, you need a license that passes muster as a contract. Copyright licenses are typically treated as contracts, but it is not clearly established in law that licenses are contracts or are not contracts. Out of the goodness of your heart, you can grant permission to use your property, but you can also withdraw that permission. If you have a contract granting perpetual permission to use your property in exchange for something of value, then you can't later withdraw that permission. In the case of Jacobsen v. Kratzer, the sides advances opposing theories that the license was a "bare license" vs. was a contract. (The matter was ultimately settled out of court). This article puts together the legal factors surrounding the notion of license as contract, see p. 21 ff, and esp. §IV for arguments that licenses should be contracts, to be fully enforceable. A contract for non-essentials formed with a minor is not enforceable, until you are 18. You could therefore revoke the license, until you are 18. Anyone who uses the software does so at their peril. However, if the license is not a contract, no existing legal doctrine (in the US) whereby the permission is irrevocable. In other words, yes you can, at their peril. The whole license-as-contract issue is very complicated, and I'm only focusing on the revocability issue. There is a separate question whether one can sue a user for both copyright infringement and breach of contract. The case of Artifex v. Hancom, see also this analysis, found that (in the particular case), plaintiff can pursue the matter as both infringement and contract breach.
Disclaimer: I'm from the US and don't claim to know German or Turkish law. So let me discuss some general principles here, but details may well be different in Germany and Turkey. You're mixing together three very different things: trademark, copyright, and patent. Copyright protects the expression of an idea, in this case, the exact computer code, images, etc. If you didn't copy his code, the chance that you would coincidentally write identical code is remote. The fact that you both have a line of code that says x=x+1 wouldn't give him any grounds for a lawsuit. He'd have to show substantial portions of the code were identical. If you didn't deliberately copy his code, this isn't going to happen. Barring some extraordinary and unbelievable coincidence, you can't violate copyright accidentally. Trademark protects names and symbols used to identify a company or a product. If you decided to call your software company "Microsoft", then that other Microsoft could sue you for trademark infringement. Likewise if you copied somebody else's logo or other distinctive graphics. This is very different from copyright. It is quite possible to violate someone's trademark accidentally. Especially if he gave his company or product a rather generic name. Like if someone called his product, say, "Password Manager", someone else might make a product with the same name without ever having heard of the original. Ditto if he has some simple logo or other graphics. If you did accidentally duplicate a name or graphic elements, well, in the US a court would likely order you to change your name or graphics and that would be the end of it, unless you refused, in which case you'd end up in court. US Courts have ruled that very generic names have limited trademark protection. An example I saw recently was "Main Street Auto Repair". A court said that the owner of that name could prevent someone else from opening a shop in the same town with the same name, but he couldn't sue someone in another town who happened to use the same name. This is why, by the way, companies often use made-up words for their product names. In your case, this should be a trivial issue. If he is claiming trademark to the look of the main menu screen, just change the colors or move some buttons around. If it actually went to court, you should be able to argue that the similarity was accidental and when you were informed you promptly changed it, and that should be the end of it. Depending, I guess, on how hard-nosed the judge is, etc. Patents are different still. A patent gives the owner the exclusive right to use an invention or process for a specified period of time. It doesn't matter if you invented the same thing entirely independently. Whoever filed the patent first has exclusive rights. There have been cases where an inventor lost out to someone with a similar invention because he submitted his patent application one day later. If this other person has patents that you are infringing, you are pretty much out of luck.