Everyone I know who uses DropBox freaked out this month when the hot cloud storage company finally admitted that it had been hacked. Although DropBox has tightened up security, trust is essential when you\u2019ve turned over your precious data, photos and music to a company that lives in the mysterious cloud. For many people, that trust has been broken.\n\tPicking a new vendor makes sense if you no longer trust DropBox, but before you say sayonara decide what you really want. If security is uppermost in your mind, it appears that the best choice is a relatively unknown service called SpiderOak. If you\u2019re willing to accept a lower, but still reasonable, level of security you\u2019ve got a lot of choices that are simpler and generally more user-friendly than SpiderOak. You also need to decide if what you really want is backup, as opposed to just storage.\n\tSince there are so many cloud vendor out there these days, I\u2019d suggest you look to a site called NextAdvisor.com, which rates online services, including eight cloud storage vendors. \u00a0NextAdvisor doesn\u2019t pretend to compete with organizations like PCWorld (our sister publication) that do painstaking laboratory testing of products, but it does have an independent staff that does a hands-on evaluation of online services. NextAdvisor offers an easy-to-read chart that compares the main features and prices of the eight vendors and it\u2019s a good place to start your search.\n\tNextAdvisor CEO Erik Larson told me that his staff was impressed with the level of security offered by SpiderOak, but noted that the service is geared toward more advanced users, and some people might find it less convenient than services like Google Drive.\n\tSince I haven\u2019t been able to use all of these services myself, I did some online research and found that Larson\u2019s conclusions were right in line with an evaluation by Ars Technica, a well-respected Web site staffed by people who know quite a bit about technology. \u201cGenerally speaking, SpiderOak is a much more flexible product than Dropbox, but the added security and flexibility come at the expense of user-friendliness,\u201d the review at Ars Techica states.\n\tAs to security, SpiderOak uses 256-bit AES encryption, plus two-factor authentication. \u00a0\u201cYou may be familiar with this if you use banking or other financial sites, which often require a PIN or the answer to a secret question in addition to your username and password. In SpiderOak\u2019s case, enabling two-factor authentication will require a code sent to you via SMS as well as your account password every time you log in,\u201d the site explains.\n\tThere\u2019s another layer of security as well. Each user of SpiderOak has a log-in that the company does not know. That\u2019s a big advantage if some government agency demands your documents; it\u2019s a disadvantage if you lose it. Since SpiderOak\u2019s staff does not know your log-in, they can\u2019t help you -- or the government -- gain access.\n\tFinally, remember that DropBox is primarily a place to store documents in a place accessible to a group of people, or to you if for some reason you don\u2019t want to keep those items on your computer. It is not a backup service. SpiderOak and many of its competitors do offer automated backup and some make it simple to synchronize those backups among a number of computers.