This post was originally published at Antmicro . Our work together with Google and the world’s research community on detecting and mitigating the Rowhammer problem in DRAM memories has been proving that the challenge is far from being solved and a lot of systems are still vulnerable. The DDR Rowhammer testing framework that we developed together with an open hardware LPDDR4 DRAM tester board has been used to detect new attack methods such as Half-Double and Blacksmith and all data seems to suggest this more such methods will be discovered with time.