Distributed denial-of-service attacks have been making a comeback, and many of them represent criminal extortion attempts. A major British payroll provider is recovering from a cyberattack, but it\u2019s not providing much information on the nature of that attack. Russian authorities arrest the founder of Group-IB on treason charges. Johannes Ullrich from SANS on Out of Band Phishing Using SMS messages. Our UK correspondent Carole Theriault wonders how online trolling is still a thing. And NSA and CISA release guidelines on secure use of virtual private networks.\nFor links to all of today's stories check out our CyberWire daily news briefing:\nhttps://www.thecyberwire.com/newsletters/daily-briefing/10/188\nLearn more about your ad choices. Visit megaphone.fm/adchoices