Obama told a crowd of industry insiders on the campus of Stanford University that as a former professor of constitutional law, and a parent concerned about his family's online privacy, he had his own misgivings about government intrusion online.
But he said as the nation's protector it falls to him to root out signs of coming threats.
"Grappling with how the government protects the American people from adverse events, while at the same time making sure the government itself is not abusing its capabilities, is hard," Obama said. "The cyber world is the wild wild west. In some degree we're expected to be the sheriff."
Meant to unite industry brass with top U.S. law enforcement officials, the White House cybersecurity summit on the campus of Stanford University attracted only one major Silicon Valley CEO: Apple's Tim Cook, who addressed the gathering shortly before Obama spoke on Friday.
Chief executives at other firms, like Google and Facebook, were invited but sent top network security personnel instead.
People familiar with the companies' decision-making were split on the reason why. One said top bosses were sitting out amid persistent concern over government surveillance, almost two years since the Edward Snowden leaks. Others downplayed the absence, suggesting the summit was intended more for retail firms, banks and insurers -- all of which were hacked recently.
READ: Paul, Cruz woo libertarian techies
Indeed, the CEOs or presidents of American Express, MasterCard, Visa and Walgreens were all slated to participate Friday, an indication of the summit's focus on making online payment systems more secure. Those companies were set to announce new commitments to better protect consumer information online.
Those agreements aside, both the White House and officials at technology firms agree there remains a damaged relationship between Obama and Silicon Valley.
"Obviously there have been tensions," said Michael Daniel, Obama's top adviser for cybersecurity issues, citing the privacy concerns raised following Snowden's leaks. "The only way you get at it is continue to have a dialogue and continue to engage."
See more here:
Obama makes cybersecurity pitch to Silicon Valley