Security threats surround us. Several months ago, I signed up for a Liker account as a possible alternative to Facebook. In mid-March, Liker abruptly shut down because of a serious data breach. They say they'll be back when they've reworked their code to be more secure. Threats can come from anywhere. In Short Circuits: When it's time to replace a computer monitor, you might consider a television because you can get a larger screen for a lower price, but should you? • If you use an application that shows the temperature of your computer's CPU, you may wonder why there's so much fluctuation and why the various cores don't all report the same temperatures. If so, I have just the information you're seeking. In Spare Parts (only on the website): If you're considering a Windows S Mode computer, be sure that you understand the limitations, and if you have one of these computers, there's a way to remove the restrictions if you find them too limiting. • Buying Apple products you see on Instagram might be dangerous. Beware fakes and counterfeit devices. • Twenty years ago: Typefaces on websites were limited to about half a dozen that were present on all computers, but Bitstream was trying to change that.