VUSec researchers at Vrije Universiteit Amsterdam have provided evidence that ECC memory is susceptible to the unpatchable
Rowhammer bitflip vulnerability in memory chips. The Rowhammer exploit is when DRAM memory chips are hammered with so many reads and writes at one particular location that it causes a bit to flip from 1 to 0, or from 0 to 1 in a completely different location.
Attackers can compromise PCs, smartphones, VM, across the network on a remote server, and even with JavaScript. The research was done on DDR3, but it is expected to work on DDR4 also.