Where can I find this survey details? Looks very interesting and am very curious to see how my favorite exchange rates there. I did not realize that there were more than 100 exchanges. I guessed maybe 50, but seems I do not know everything there is to know about crypto. I am especially interested to find out how the survey captured the data. I think most exchanges would not let anyone just go into their systems to find out about security.
Thank you, Uncle Google:
https://blog.sqreen.io/cryptocurrency-exchanges-security/Posted in January, but with no link to their report, their data collection methods, or anything else, just a sort of bait/shill blog post to buy their security product - which I'm sure most whitehat hackers would be happy to tear apart anyway.
Not saying their findings are complete garbage, they probably are just falsely quantifying the issues that we aren't surprised to know about exchanges: that their security is far below the benchmark required by a business that handles billions of dollars worth of transactions daily (recent reports say the top 10 exchanges make $3million a day in fees).
Also, a proper security test seldom needs permission of the site/server... you don't want them to start prepping for an attack, otherwise you don't get real world conditions.