What am I missing as far as him copy/pasting?  I looked through the posts he linked to and didn't find anything from your link.

OP, stop whining about not getting merits.  You're obviously obsessed with earning them and are making extremely long, rambling posts that aren't interesting or well written.  I wouldn't merit any of them.

Cryptocurrency are a digital asset that when transferred are not easily recovered accept the recipient does so.
Cryptocurrency market has seen a great uprising so far and this has cursed the exchange to be a major target for criminals and hackers.

Exchanges are in possession of a good amount of cryptocurrency so this has been the primary target. A lot of event has led to the loss of customers funds and wide variety of schemes has been employed ranging from outside server breaches to inside theft.  In many cases exchanges where losses occurred were forced to close and customers funds were never recovered.

One 2013 study analysing the survival rate of 40 bitcoin exchanges found that over 22% of exchanges had experienced security breaches forcing 56% of the affected exchange to go out of business  

73% of exchanges controls customers private keys making them a potentially attractive heaven for hackers as these exchanges have possession of user funds denominated In cryptocurrency.

23% of exchanges do not have control of customers private keys thereby preventing exchange from accessing customers holdings or not being able to return funds to users in the event the exchange ceases to function

Security measures.
 Exchanges use a variety of internal security measures to monitor production access and restrict access to sensitive information. However large exchange use them considerably more often than small exchanges

91% of large exchanges and 83% of small exchanges uses software to create a complete record of all internal process and action which allows them to quickly discover potential inconsistency. The largest difference between small and large exchanges is observed regarding the use of a special hardware dedicated to a single purpose example air frappes dence for cold storage of cryptocurrency funds.  This are used by 91% large exchanges and 59% small exchanges  

82% of this large exchanges and 62% of small exchanges also use physical site location security system to monitor access to facilities 73% of large exchanges use various type of consensus mechanisms that requires several employees to authorize a specific action.

Key storage
  This section refers to the key management system that exchanges use to secure both customer and exchange key

Cold storage
 92% of exchanges indicate that the use some form of cold storage system example generating and keeping keys offline

Multi signature and private key storage.
 Multi signature is supported by 86% of production systems from large exchanges but by 76% of small exchanges.

All exchanges that do not use cold storage system have multi signature support.  85% of large exchanges and 75% of small exchanges that has cold storage system also have multi signature support. Large exchanges that support multi signature architectures also more often use external third party multi signature platform than small exchanges (60% compared to 44%) while large exchanges distribute keys of multi signature wallet among multiple holders 19% of small exchanges does that


Source in this research is a cryptocurrency educational book..  Global cryptocurrency benchmarking study

Noted my future post is going to be good