Observers say the trial of former Theranos chief Elizabeth Holmes raises concerns about the way the technology industry pushes its products and services.The closely watched trial has brought a lot of attention to the area in California known as Silicon Valley, a technology industry center, and its methods.Holmes was found guilty on Monday of four of 11 charges of fraud.She had been accused of tricking investors into believing that Theranos had developed a revolutionary new medical device.The device, company officials said, was able to find many kinds of diseases from a small amount of blood taken from a person's finger.Now, Holmes could serve 20 years in prison for each charge.Legal experts say she is unlikely to serve that long, however.Few experts expect the jury's guilty decision to change the Silicon Valley way of thinking.The technology industry has long reached success by making big promises.Holmes' trial result "will send a message to CEOs that there are consequences in overstepping the bounds," said Ellen Kreitzberg.She is a law professor at Santa Clara University.