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APFS, or Apple File System, is a modern file system developed by Apple Inc. that was designed to replace the older Hierarchical File System Plus (HFS+) with an emphasis on **improved performance, security, and efficiency**.
1.**Space Sharing**: APFS allows multiple volumes to **share the same underlying free storage** on a single physical device. This enables more efficient space utilization as the volumes can dynamically grow and shrink without the need for manual resizing or repartitioning.
1. This means, compared with traditional partitions in file disks, t**hat in APFS different partitions (volumes) shares all the disk space**, while a regular partition usually had a fixed size.
2.**Snapshots**: APFS supports **creating snapshots**, which are **read-only**, point-in-time instances of the file system. Snapshots enable efficient backups and easy system rollbacks, as they consume minimal additional storage and can be quickly created or reverted.
3.**Clones**: APFS can **create file or directory clones that share the same storage** as the original until either the clone or the original file is modified. This feature provides an efficient way to create copies of files or directories without duplicating the storage space.
4.**Encryption**: APFS **natively supports full-disk encryption** as well as per-file and per-directory encryption, enhancing data security across different use cases.
5.**Crash Protection**: APFS uses a **copy-on-write metadata scheme that ensures file system consistency** even in cases of sudden power loss or system crashes, reducing the risk of data corruption.
Overall, APFS offers a more modern, flexible, and efficient file system for Apple devices, with a focus on improved performance, reliability, and security.
On the **left**, there is the directory path on the **System volume**, and on the **right**, the directory path where it maps on the **Data volume**. So, `/library` --> `/system/Volumes/data/library`
* Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
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* **Share your hacking tricks by submitting PRs to the** [**hacktricks repo**](https://github.com/carlospolop/hacktricks) **and** [**hacktricks-cloud repo**](https://github.com/carlospolop/hacktricks-cloud).
