Shredders are still very useful for some companies that print very frequently! In particular, the documents printed by the company will involve information such as permissions or privacy, so a shredder is naturally needed. Sometimes a company's policy adjustment will invalidate the original policy, and some documents need to be destroyed. Shredding by hand will be a big problem. It's long hours of hard work, and it's difficult to protect the information from being leaked if it's shredded by hand!
The size of the paper shredder can be adjusted, and the shredding methods include: shredded, segmented, foamy, striped, granular, filamentous, etc. If it is a general office environment, you can choose granular, filamentous, segmented or strip-shaped ones. But for many private documents that need to be insured, they definitely need to be broken into granules or even foam!
Some companies have regulations that if something goes wrong, the file must be destroyed and cannot be reused as waste paper because there will be a risk of privacy leakage. This is the first requirement, wrong file destruction!
In particular, some erroneous documents involving contracts, ID cards (legal person executives), financial statements, etc. must be destroyed, and formal documents and correct information must be kept by administrative personnel who specialize in document management. For some stamped documents, once the statute of limitations has expired, they must be destroyed if they are no longer of use!
The emergence of paper shredders will avoid many dangerous phenomena, and some companies may have strong privacy concerns. For example, some iterations of design drawings must be destroyed, so the importance of paper shredders is still very great.

