Massive Q&A website Quora suffers a data breach, exposing 100 million users. Signet Jewelers, the parent company of retailers Jared and Kay Jewelers, has fixed a vulnerability found in its websites. Adobe released update closing Flash Player backdoor vulnerability. Schools, government agencies and private organizations were the target of bomb threat emails that struck nationwide in December 2018. Microsoft urges users to install updates preventing Internet Explorer vulnerability.Researchers at Trend Micro have identified a new type of malware hidden in memes posted to the social media site, Twitter. Malware targets online shoppers with "convincing" Amazon emails.