For example, spending on cyber security protection is expected to increase 10% in Britain and Europe by 2020, according to Brian Lord, a managing director of cyber and technology at cyber security firm PGI.

“In many companies there’s been an increase in investment inIT but not in the security that sits around it, so this investment is likely to play a bit of catch-up,” Lord told Reuters.

The PureFunds ISE Cyber Security ETF was the first listed ETF to focus on the cyber security sector, tracking an index of companies actively involved int eh cyber security industry, including names like Fireeye 4.9%, Qualys 4.4% and Imperva 4.4%, among others.

The First Trust Nasdaq Cybersecurity ETF also tracks companies engaged in the cybersecurity segment of the tech and industrials sectors, including Check Point Software Technologies 6.6%, Symantec Corp. 6.6% and Cisco Systems 6.0%.

While both track the cybersec segment, HACK focuses more on smaller companies starting out in the software security segment, with a focus on small- and micro-cap stocks, which makes up half of its portfolio. On the other hand, CIBR leans towards mid- and large-caps at 36.9% and 19.4%, respectively.

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