Blockchain technology is a digital ledger that is distributed and shared by everyone on the network. This Distributed Ledger Technology is how consensus is reached, thus creating a trustless system.
Since everyone shares the same ledger, they can view every transaction, new and old. To be recorded, each one of these transactions must be agreed upon by the majority at which point it is enccrypted and linked together with the last transaction, forming a “chain”.
This level of transparency offers a greater level of traceability as well since every transaction leaves digital bread crumbs that anyone can follow back to exactly where the asset came from and see who else might have handled it along the way.
Both of these traits help contribute to the blockchains overall security since getting away with something nefarious that has been permanently recorded and is visible to anyone, is quite difficult. But on top of that, the blockchain benefits from decentralisation, removing any single point of failure and making it a much harder endeavor for any would-be hacker.
Because blockchain technology offers an automated, trustless alternative to traditional processes, many third-parties can be removed from the equation entirely, saving time and money. Also since all record keeping is done on the blockchain’s digital ledger, much less physical documentation is required, saving on office space. As I previously mentioned, this ledger is shared by all parties so there is no need for excessive amounts of account reconciliation between transacting parties, saving yet more time and money.