Ars Technica: DDR4 memory protections are broken wide open by new Rowhammer tech
nique.
[1]https://arstechnica.com/gadgets/2021/11/ddr4-memory-is-even-more-susceptible-
to-rowhammer-attacks-than-anyone-thought/

References

   1. https://arstechnica.com/gadgets/2021/11/ddr4-memory-is-even-more-susceptible-to-rowhammer-attacks-than-anyone-thought/