The purpose of this study is to examine how political communication of security policy is presented by Swedish parliamentary parties in the context of media development. Political actors have been given increased opportunities to communicate with the public, therefore the aim of this study is also to investigate how their political communication affects the interactions that it creates, such as readers' commentary on social media. This is a case study of Sweden's right and left parliamentary outliers, The Sweden Democrats and The Left Party, as selection attempted a limited generalization to a wider perspective of other parties. The empirical material has been analyzed from Instagram and X to find out if the communication differs between platforms. The study concludes that Swedish security policy is presented differently between the parties on social media. The communication does differ between platforms. The Left Party shifts patterns of which security policy gains the most attention and how the issue is presented. Both parties use their communication in a more personal tone towards other parties and users on X compared to Instagram. The result of the interactions shows that the agreed rate for petitions is high for both parties on Instagram, and lower on X.