Australia has imposed sanctions on a Russian individual for his role in a cyber attack on the insurance company Medibank. Hackers carried out one of the largest data breaches, affecting around 10 million clients, according to Reuters. Targeted financial sanctions and a travel ban have been applied to Russian citizen Alexander Yermakov after the Australian government linked him to the Medibank breach. “These people are cowards and they’re scumbags. They hide behind technology and today, the Australian government is saying that when we put our minds to it, we’ll unveil who you are, and we’ll mak…