An attack on a Ukrainian satellite service has left the rest of the world anxious about future attacks. In February and March, the Ukrainian KA-SAT Viasat satellite network was the victim of a suspected Russian attack, adding to the ongoing ground war. The incident resulted in an interruption to connectivity, causing a period of disruption for clients and services. Now, the US has warned satellite providers worldwide to be on alert. Due to the success of the attack – and the potential for widespread disruption – a CISA-FBI advisory board has recommended that security teams increase defences where possible. The board also advised that attacks against critical infrastructure satellites were even more likely.