unfortunately, researchers are unconvinced that lessons will be heeded and, despite the impact of wannacry and petya, predict there will still be organisations falling victim to future ransomware worm attacks because they fail to apply patches.

Write the above sentence using proper case.
Unfortunately, researchers are unconvinced that lessons will be heeded and, despite the impact of WannaCry and Petya, predict there will still be organisations falling victim to future ransomware worm attacks because they fail to apply patches.