According to what I know, it has taken about 7 years to crack the PS4 so far. The reasons for this situation can be explained from many aspects.

First of all, PS4, as a mainstream game console, has strong protection measures and security. Cracking a game console requires in-depth research and analysis of its system and hardware, which requires time and skill accumulation. Therefore, when faced with complex security measures, crackers need to spend a long time to overcome these difficulties.

Secondly, for game manufacturers and console manufacturers, they have been continuously strengthening the protective measures of game consoles to protect the copyright and interests of games. This means that crackers need to constantly deal with new security updates and difficulties, looking for vulnerabilities and finding breakthroughs. This process requires patience and perseverance, so progress in cracking may be relatively slow.

In addition, the cracking process is also subject to legal and moral constraints. Although there are people who attempt to hack a PS4 to obtain free games or other illegal uses, such behavior is illegal and may lead to legal prosecution. Therefore, legitimate crackers need to exercise caution and abide by relevant laws and regulations, which will also have a certain impact on the cracking process.

It should be noted that cracking game consoles involves copyright and legal issues, so I do not encourage or support any illegal cracking behavior. The above answers are for reference only and have been appropriately expanded upon.